20216843880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:664

約数の個数: 256

約数和(自身を含む): 63547545600

約数和(自身を除く): 43330701720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 71, 86, 120, 129, 139, 142, 172, 213, 215, 258, 278, 284, 344, 355, 397, 417, 426, 430, 516, 556, 568, 645, 695, 710, 794, 834, 852, 860, 1032, 1065, 1112, 1191, 1290, 1390, 1420, 1588, 1668, 1704, 1720, 1985, 2085, 2130, 2382, 2580, 2780, 2840, 3053, 3176, 3336, 3970, 4170, 4260, 4764, 5160, 5560, 5955, 5977, 6106, 7940, 8340, 8520, 9159, 9528, 9869, 11910, 11954, 12212, 15265, 15880, 16680, 17071, 17931, 18318, 19738, 23820, 23908, 24424, 28187, 29607, 29885, 30530, 34142, 35862, 36636, 39476, 45795, 47640, 47816, 49345, 51213, 55183, 56374, 59214, 59770, 61060, 68284, 71724, 73272, 78952, 84561, 85355, 89655, 91590, 98690, 102426, 110366, 112748, 118428, 119540, 122120, 136568, 140935, 143448, 148035, 165549, 169122, 170710, 179310, 183180, 197380, 204852, 220732, 225496, 236856, 239080, 256065, 275915, 281870, 296070, 331098, 338244, 341420, 358620, 366360, 394760, 409704, 422805, 424367, 441464, 512130, 551830, 563740, 592140, 662196, 676488, 682840, 717240, 827745, 845610, 848734, 1024260, 1103660, 1127480, 1184280, 1212041, 1273101, 1324392, 1655490, 1691220, 1697468, 2048520, 2121835, 2207320, 2372869, 2424082, 2546202, 3310980, 3382440, 3394936, 3636123, 3917993, 4243670, 4745738, 4848164, 5092404, 6060205, 6365505, 6621960, 7118607, 7272246, 7835986, 8487340, 9491476, 9696328, 10184808, 11753979, 11864345, 12120410, 12731010, 14237214, 14544492, 15671972, 16974680, 18180615, 18982952, 19589965, 23507958, 23728690, 24240820, 25462020, 28474428, 29088984, 31343944, 35593035, 36361230, 39179930, 47015916, 47457380, 48481640, 50924040, 56948856, 58769895, 71186070, 72722460, 78359860, 94031832, 94914760, 117539790, 142372140, 145444920, 156719720, 168473699, 235079580, 284744280, 336947398, 470159160, 505421097, 673894796, 842368495, 1010842194, 1347789592, 1684736990, 2021684388, 2527105485, 3369473980, 4043368776, 5054210970, 6738947960, 10108421940, 20216843880]

約数ペア:

[(1, 20216843880), (2, 10108421940), (3, 6738947960), (4, 5054210970), (5, 4043368776), (6, 3369473980), (8, 2527105485), (10, 2021684388), (12, 1684736990), (15, 1347789592), (20, 1010842194), (24, 842368495), (30, 673894796), (40, 505421097), (43, 470159160), (60, 336947398), (71, 284744280), (86, 235079580), (120, 168473699), (129, 156719720), (139, 145444920), (142, 142372140), (172, 117539790), (213, 94914760), (215, 94031832), (258, 78359860), (278, 72722460), (284, 71186070), (344, 58769895), (355, 56948856), (397, 50924040), (417, 48481640), (426, 47457380), (430, 47015916), (516, 39179930), (556, 36361230), (568, 35593035), (645, 31343944), (695, 29088984), (710, 28474428), (794, 25462020), (834, 24240820), (852, 23728690), (860, 23507958), (1032, 19589965), (1065, 18982952), (1112, 18180615), (1191, 16974680), (1290, 15671972), (1390, 14544492), (1420, 14237214), (1588, 12731010), (1668, 12120410), (1704, 11864345), (1720, 11753979), (1985, 10184808), (2085, 9696328), (2130, 9491476), (2382, 8487340), (2580, 7835986), (2780, 7272246), (2840, 7118607), (3053, 6621960), (3176, 6365505), (3336, 6060205), (3970, 5092404), (4170, 4848164), (4260, 4745738), (4764, 4243670), (5160, 3917993), (5560, 3636123), (5955, 3394936), (5977, 3382440), (6106, 3310980), (7940, 2546202), (8340, 2424082), (8520, 2372869), (9159, 2207320), (9528, 2121835), (9869, 2048520), (11910, 1697468), (11954, 1691220), (12212, 1655490), (15265, 1324392), (15880, 1273101), (16680, 1212041), (17071, 1184280), (17931, 1127480), (18318, 1103660), (19738, 1024260), (23820, 848734), (23908, 845610), (24424, 827745), (28187, 717240), (29607, 682840), (29885, 676488), (30530, 662196), (34142, 592140), (35862, 563740), (36636, 551830), (39476, 512130), (45795, 441464), (47640, 424367), (47816, 422805), (49345, 409704), (51213, 394760), (55183, 366360), (56374, 358620), (59214, 341420), (59770, 338244), (61060, 331098), (68284, 296070), (71724, 281870), (73272, 275915), (78952, 256065), (84561, 239080), (85355, 236856), (89655, 225496), (91590, 220732), (98690, 204852), (102426, 197380), (110366, 183180), (112748, 179310), (118428, 170710), (119540, 169122), (122120, 165549), (136568, 148035), (140935, 143448)]