21156361680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{7877}}^1$

素因数の和:7962

約数の個数: 240

約数和(自身を含む): 71460140544

約数和(自身を除く): 50303778864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 361, 372, 380, 456, 465, 496, 570, 589, 620, 722, 744, 760, 912, 930, 1083, 1140, 1178, 1240, 1444, 1488, 1520, 1767, 1805, 1860, 2166, 2280, 2356, 2480, 2888, 2945, 3534, 3610, 3720, 4332, 4560, 4712, 5415, 5776, 5890, 7068, 7220, 7440, 7877, 8664, 8835, 9424, 10830, 11191, 11780, 14136, 14440, 15754, 17328, 17670, 21660, 22382, 23560, 23631, 28272, 28880, 31508, 33573, 35340, 39385, 43320, 44764, 47120, 47262, 55955, 63016, 67146, 70680, 78770, 86640, 89528, 94524, 111910, 118155, 126032, 134292, 141360, 149663, 157540, 167865, 179056, 189048, 223820, 236310, 244187, 268584, 299326, 315080, 335730, 378096, 447640, 448989, 472620, 488374, 537168, 598652, 630160, 671460, 732561, 748315, 895280, 897978, 945240, 976748, 1197304, 1220935, 1342920, 1465122, 1496630, 1795956, 1890480, 1953496, 2244945, 2394608, 2441870, 2685840, 2843597, 2930244, 2993260, 3591912, 3662805, 3906992, 4489890, 4639553, 4883740, 5687194, 5860488, 5986520, 7183824, 7325610, 8530791, 8979780, 9279106, 9767480, 11374388, 11720976, 11973040, 13918659, 14217985, 14651220, 17061582, 17959560, 18558212, 19534960, 22748776, 23197765, 27837318, 28435970, 29302440, 34123164, 35919120, 37116424, 42653955, 45497552, 46395530, 55674636, 56871940, 58604880, 68246328, 69593295, 74232848, 85307910, 88151507, 92791060, 111349272, 113743880, 136492656, 139186590, 170615820, 176303014, 185582120, 222698544, 227487760, 264454521, 278373180, 341231640, 352606028, 371164240, 440757535, 528909042, 556746360, 682463280, 705212056, 881515070, 1057818084, 1113492720, 1322272605, 1410424112, 1763030140, 2115636168, 2644545210, 3526060280, 4231272336, 5289090420, 7052120560, 10578180840, 21156361680]

約数ペア:

[(1, 21156361680), (2, 10578180840), (3, 7052120560), (4, 5289090420), (5, 4231272336), (6, 3526060280), (8, 2644545210), (10, 2115636168), (12, 1763030140), (15, 1410424112), (16, 1322272605), (19, 1113492720), (20, 1057818084), (24, 881515070), (30, 705212056), (31, 682463280), (38, 556746360), (40, 528909042), (48, 440757535), (57, 371164240), (60, 352606028), (62, 341231640), (76, 278373180), (80, 264454521), (93, 227487760), (95, 222698544), (114, 185582120), (120, 176303014), (124, 170615820), (152, 139186590), (155, 136492656), (186, 113743880), (190, 111349272), (228, 92791060), (240, 88151507), (248, 85307910), (285, 74232848), (304, 69593295), (310, 68246328), (361, 58604880), (372, 56871940), (380, 55674636), (456, 46395530), (465, 45497552), (496, 42653955), (570, 37116424), (589, 35919120), (620, 34123164), (722, 29302440), (744, 28435970), (760, 27837318), (912, 23197765), (930, 22748776), (1083, 19534960), (1140, 18558212), (1178, 17959560), (1240, 17061582), (1444, 14651220), (1488, 14217985), (1520, 13918659), (1767, 11973040), (1805, 11720976), (1860, 11374388), (2166, 9767480), (2280, 9279106), (2356, 8979780), (2480, 8530791), (2888, 7325610), (2945, 7183824), (3534, 5986520), (3610, 5860488), (3720, 5687194), (4332, 4883740), (4560, 4639553), (4712, 4489890), (5415, 3906992), (5776, 3662805), (5890, 3591912), (7068, 2993260), (7220, 2930244), (7440, 2843597), (7877, 2685840), (8664, 2441870), (8835, 2394608), (9424, 2244945), (10830, 1953496), (11191, 1890480), (11780, 1795956), (14136, 1496630), (14440, 1465122), (15754, 1342920), (17328, 1220935), (17670, 1197304), (21660, 976748), (22382, 945240), (23560, 897978), (23631, 895280), (28272, 748315), (28880, 732561), (31508, 671460), (33573, 630160), (35340, 598652), (39385, 537168), (43320, 488374), (44764, 472620), (47120, 448989), (47262, 447640), (55955, 378096), (63016, 335730), (67146, 315080), (70680, 299326), (78770, 268584), (86640, 244187), (89528, 236310), (94524, 223820), (111910, 189048), (118155, 179056), (126032, 167865), (134292, 157540), (141360, 149663)]