221838680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 256

約数和(自身を含む): 656640000

約数和(自身を除く): 434801320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 37, 38, 40, 46, 49, 56, 70, 74, 76, 92, 95, 98, 115, 133, 140, 148, 152, 161, 184, 185, 190, 196, 230, 245, 259, 266, 280, 296, 322, 343, 370, 380, 392, 437, 460, 490, 518, 532, 644, 665, 686, 703, 740, 760, 805, 851, 874, 920, 931, 980, 1036, 1064, 1127, 1288, 1295, 1330, 1372, 1406, 1480, 1610, 1702, 1715, 1748, 1813, 1862, 1960, 2072, 2185, 2254, 2590, 2660, 2744, 2812, 3059, 3220, 3404, 3430, 3496, 3515, 3626, 3724, 4255, 4370, 4508, 4655, 4921, 5180, 5320, 5624, 5635, 5957, 6118, 6440, 6517, 6808, 6860, 7030, 7252, 7448, 7889, 8510, 8740, 9016, 9065, 9310, 9842, 10360, 11270, 11914, 12236, 12691, 13034, 13720, 14060, 14504, 15295, 15778, 16169, 17020, 17480, 18130, 18620, 19684, 21413, 22540, 23828, 24472, 24605, 25382, 26068, 28120, 29785, 30590, 31556, 32338, 32585, 34040, 34447, 36260, 37240, 39368, 39445, 41699, 42826, 45080, 47656, 49210, 50764, 52136, 59570, 61180, 63112, 63455, 64676, 65170, 68894, 72520, 78890, 80845, 83398, 85652, 98420, 101528, 107065, 113183, 119140, 122360, 126910, 129352, 130340, 137788, 149891, 157780, 161690, 166796, 171304, 172235, 196840, 208495, 214130, 226366, 238280, 241129, 253820, 260680, 275576, 291893, 299782, 315560, 323380, 333592, 344470, 416990, 428260, 452732, 482258, 507640, 565915, 583786, 599564, 646760, 688940, 749455, 792281, 833980, 856520, 905464, 964516, 1131830, 1167572, 1199128, 1205645, 1377880, 1459465, 1498910, 1584562, 1667960, 1929032, 2263660, 2335144, 2411290, 2918930, 2997820, 3169124, 3961405, 4527320, 4822580, 5545967, 5837860, 5995640, 6338248, 7922810, 9645160, 11091934, 11675720, 15845620, 22183868, 27729835, 31691240, 44367736, 55459670, 110919340, 221838680]

約数ペア:

[(1, 221838680), (2, 110919340), (4, 55459670), (5, 44367736), (7, 31691240), (8, 27729835), (10, 22183868), (14, 15845620), (19, 11675720), (20, 11091934), (23, 9645160), (28, 7922810), (35, 6338248), (37, 5995640), (38, 5837860), (40, 5545967), (46, 4822580), (49, 4527320), (56, 3961405), (70, 3169124), (74, 2997820), (76, 2918930), (92, 2411290), (95, 2335144), (98, 2263660), (115, 1929032), (133, 1667960), (140, 1584562), (148, 1498910), (152, 1459465), (161, 1377880), (184, 1205645), (185, 1199128), (190, 1167572), (196, 1131830), (230, 964516), (245, 905464), (259, 856520), (266, 833980), (280, 792281), (296, 749455), (322, 688940), (343, 646760), (370, 599564), (380, 583786), (392, 565915), (437, 507640), (460, 482258), (490, 452732), (518, 428260), (532, 416990), (644, 344470), (665, 333592), (686, 323380), (703, 315560), (740, 299782), (760, 291893), (805, 275576), (851, 260680), (874, 253820), (920, 241129), (931, 238280), (980, 226366), (1036, 214130), (1064, 208495), (1127, 196840), (1288, 172235), (1295, 171304), (1330, 166796), (1372, 161690), (1406, 157780), (1480, 149891), (1610, 137788), (1702, 130340), (1715, 129352), (1748, 126910), (1813, 122360), (1862, 119140), (1960, 113183), (2072, 107065), (2185, 101528), (2254, 98420), (2590, 85652), (2660, 83398), (2744, 80845), (2812, 78890), (3059, 72520), (3220, 68894), (3404, 65170), (3430, 64676), (3496, 63455), (3515, 63112), (3626, 61180), (3724, 59570), (4255, 52136), (4370, 50764), (4508, 49210), (4655, 47656), (4921, 45080), (5180, 42826), (5320, 41699), (5624, 39445), (5635, 39368), (5957, 37240), (6118, 36260), (6440, 34447), (6517, 34040), (6808, 32585), (6860, 32338), (7030, 31556), (7252, 30590), (7448, 29785), (7889, 28120), (8510, 26068), (8740, 25382), (9016, 24605), (9065, 24472), (9310, 23828), (9842, 22540), (10360, 21413), (11270, 19684), (11914, 18620), (12236, 18130), (12691, 17480), (13034, 17020), (13720, 16169), (14060, 15778), (14504, 15295)]