1991029920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{677}}^1$

素因数の和:1263

約数の個数: 192

約数和(自身を含む): 6864310656

約数和(自身を除く): 4873280736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 557, 660, 677, 880, 1056, 1114, 1320, 1354, 1671, 1760, 2031, 2228, 2640, 2708, 2785, 3342, 3385, 4062, 4456, 5280, 5416, 5570, 6127, 6684, 6770, 7447, 8124, 8355, 8912, 10155, 10832, 11140, 12254, 13368, 13540, 14894, 16248, 16710, 17824, 18381, 20310, 21664, 22280, 22341, 24508, 26736, 27080, 29788, 30635, 32496, 33420, 36762, 37235, 40620, 44560, 44682, 49016, 53472, 54160, 59576, 61270, 64992, 66840, 73524, 74470, 81240, 89120, 89364, 91905, 98032, 108320, 111705, 119152, 122540, 133680, 147048, 148940, 162480, 178728, 183810, 196064, 223410, 238304, 245080, 267360, 294096, 297880, 324960, 357456, 367620, 377089, 446820, 490160, 588192, 595760, 714912, 735240, 754178, 893640, 980320, 1131267, 1191520, 1470480, 1508356, 1787280, 1885445, 2262534, 2940960, 3016712, 3574560, 3770890, 4147979, 4525068, 5656335, 6033424, 7541780, 8295958, 9050136, 11312670, 12066848, 12443937, 15083560, 16591916, 18100272, 20739895, 22625340, 24887874, 30167120, 33183832, 36200544, 41479790, 45250680, 49775748, 60334240, 62219685, 66367664, 82959580, 90501360, 99551496, 124439370, 132735328, 165919160, 181002720, 199102992, 248878740, 331838320, 398205984, 497757480, 663676640, 995514960, 1991029920]

約数ペア:

[(1, 1991029920), (2, 995514960), (3, 663676640), (4, 497757480), (5, 398205984), (6, 331838320), (8, 248878740), (10, 199102992), (11, 181002720), (12, 165919160), (15, 132735328), (16, 124439370), (20, 99551496), (22, 90501360), (24, 82959580), (30, 66367664), (32, 62219685), (33, 60334240), (40, 49775748), (44, 45250680), (48, 41479790), (55, 36200544), (60, 33183832), (66, 30167120), (80, 24887874), (88, 22625340), (96, 20739895), (110, 18100272), (120, 16591916), (132, 15083560), (160, 12443937), (165, 12066848), (176, 11312670), (220, 9050136), (240, 8295958), (264, 7541780), (330, 6033424), (352, 5656335), (440, 4525068), (480, 4147979), (528, 3770890), (557, 3574560), (660, 3016712), (677, 2940960), (880, 2262534), (1056, 1885445), (1114, 1787280), (1320, 1508356), (1354, 1470480), (1671, 1191520), (1760, 1131267), (2031, 980320), (2228, 893640), (2640, 754178), (2708, 735240), (2785, 714912), (3342, 595760), (3385, 588192), (4062, 490160), (4456, 446820), (5280, 377089), (5416, 367620), (5570, 357456), (6127, 324960), (6684, 297880), (6770, 294096), (7447, 267360), (8124, 245080), (8355, 238304), (8912, 223410), (10155, 196064), (10832, 183810), (11140, 178728), (12254, 162480), (13368, 148940), (13540, 147048), (14894, 133680), (16248, 122540), (16710, 119152), (17824, 111705), (18381, 108320), (20310, 98032), (21664, 91905), (22280, 89364), (22341, 89120), (24508, 81240), (26736, 74470), (27080, 73524), (29788, 66840), (30635, 64992), (32496, 61270), (33420, 59576), (36762, 54160), (37235, 53472), (40620, 49016), (44560, 44682)]