1990654008

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{79}}^1\times {\mathrm{3061}}^1$

素因数の和:3170

約数の個数: 128

約数和(自身を含む): 5879040000

約数和(自身を除く): 3888385992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 79, 84, 98, 147, 158, 168, 196, 237, 294, 316, 343, 392, 474, 553, 588, 632, 686, 948, 1029, 1106, 1176, 1372, 1659, 1896, 2058, 2212, 2744, 3061, 3318, 3871, 4116, 4424, 6122, 6636, 7742, 8232, 9183, 11613, 12244, 13272, 15484, 18366, 21427, 23226, 24488, 27097, 30968, 36732, 42854, 46452, 54194, 64281, 73464, 81291, 85708, 92904, 108388, 128562, 149989, 162582, 171416, 216776, 241819, 257124, 299978, 325164, 449967, 483638, 514248, 599956, 650328, 725457, 899934, 967276, 1049923, 1199912, 1450914, 1692733, 1799868, 1934552, 2099846, 2901828, 3149769, 3385466, 3599736, 4199692, 5078199, 5803656, 6299538, 6770932, 8399384, 10156398, 11849131, 12599076, 13541864, 20312796, 23698262, 25198152, 35547393, 40625592, 47396524, 71094786, 82943917, 94793048, 142189572, 165887834, 248831751, 284379144, 331775668, 497663502, 663551336, 995327004, 1990654008]

約数ペア:

[(1, 1990654008), (2, 995327004), (3, 663551336), (4, 497663502), (6, 331775668), (7, 284379144), (8, 248831751), (12, 165887834), (14, 142189572), (21, 94793048), (24, 82943917), (28, 71094786), (42, 47396524), (49, 40625592), (56, 35547393), (79, 25198152), (84, 23698262), (98, 20312796), (147, 13541864), (158, 12599076), (168, 11849131), (196, 10156398), (237, 8399384), (294, 6770932), (316, 6299538), (343, 5803656), (392, 5078199), (474, 4199692), (553, 3599736), (588, 3385466), (632, 3149769), (686, 2901828), (948, 2099846), (1029, 1934552), (1106, 1799868), (1176, 1692733), (1372, 1450914), (1659, 1199912), (1896, 1049923), (2058, 967276), (2212, 899934), (2744, 725457), (3061, 650328), (3318, 599956), (3871, 514248), (4116, 483638), (4424, 449967), (6122, 325164), (6636, 299978), (7742, 257124), (8232, 241819), (9183, 216776), (11613, 171416), (12244, 162582), (13272, 149989), (15484, 128562), (18366, 108388), (21427, 92904), (23226, 85708), (24488, 81291), (27097, 73464), (30968, 64281), (36732, 54194), (42854, 46452)]