641209920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:493

約数の個数: 224

約数和(自身を含む): 2212116480

約数和(自身を除く): 1570906560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 191, 192, 195, 208, 240, 260, 269, 312, 320, 382, 390, 416, 480, 520, 538, 573, 624, 764, 780, 807, 832, 955, 960, 1040, 1076, 1146, 1248, 1345, 1528, 1560, 1614, 1910, 2080, 2152, 2292, 2483, 2496, 2690, 2865, 3056, 3120, 3228, 3497, 3820, 4035, 4160, 4304, 4584, 4966, 5380, 5730, 6112, 6240, 6456, 6994, 7449, 7640, 8070, 8608, 9168, 9932, 10491, 10760, 11460, 12224, 12415, 12480, 12912, 13988, 14898, 15280, 16140, 17216, 17485, 18336, 19864, 20982, 21520, 22920, 24830, 25824, 27976, 29796, 30560, 32280, 34970, 36672, 37245, 39728, 41964, 43040, 45840, 49660, 51379, 51648, 52455, 55952, 59592, 61120, 64560, 69940, 74490, 79456, 83928, 86080, 91680, 99320, 102758, 104910, 111904, 119184, 129120, 139880, 148980, 154137, 158912, 167856, 183360, 198640, 205516, 209820, 223808, 238368, 256895, 258240, 279760, 297960, 308274, 335712, 397280, 411032, 419640, 476736, 513790, 559520, 595920, 616548, 667927, 671424, 770685, 794560, 822064, 839280, 1027580, 1119040, 1191840, 1233096, 1335854, 1541370, 1644128, 1678560, 2003781, 2055160, 2383680, 2466192, 2671708, 3082740, 3288256, 3339635, 3357120, 4007562, 4110320, 4932384, 5343416, 6165480, 6679270, 8015124, 8220640, 9864768, 10018905, 10686832, 12330960, 13358540, 16030248, 16441280, 20037810, 21373664, 24661920, 26717080, 32060496, 40075620, 42747328, 49323840, 53434160, 64120992, 80151240, 106868320, 128241984, 160302480, 213736640, 320604960, 641209920]

約数ペア:

[(1, 641209920), (2, 320604960), (3, 213736640), (4, 160302480), (5, 128241984), (6, 106868320), (8, 80151240), (10, 64120992), (12, 53434160), (13, 49323840), (15, 42747328), (16, 40075620), (20, 32060496), (24, 26717080), (26, 24661920), (30, 21373664), (32, 20037810), (39, 16441280), (40, 16030248), (48, 13358540), (52, 12330960), (60, 10686832), (64, 10018905), (65, 9864768), (78, 8220640), (80, 8015124), (96, 6679270), (104, 6165480), (120, 5343416), (130, 4932384), (156, 4110320), (160, 4007562), (191, 3357120), (192, 3339635), (195, 3288256), (208, 3082740), (240, 2671708), (260, 2466192), (269, 2383680), (312, 2055160), (320, 2003781), (382, 1678560), (390, 1644128), (416, 1541370), (480, 1335854), (520, 1233096), (538, 1191840), (573, 1119040), (624, 1027580), (764, 839280), (780, 822064), (807, 794560), (832, 770685), (955, 671424), (960, 667927), (1040, 616548), (1076, 595920), (1146, 559520), (1248, 513790), (1345, 476736), (1528, 419640), (1560, 411032), (1614, 397280), (1910, 335712), (2080, 308274), (2152, 297960), (2292, 279760), (2483, 258240), (2496, 256895), (2690, 238368), (2865, 223808), (3056, 209820), (3120, 205516), (3228, 198640), (3497, 183360), (3820, 167856), (4035, 158912), (4160, 154137), (4304, 148980), (4584, 139880), (4966, 129120), (5380, 119184), (5730, 111904), (6112, 104910), (6240, 102758), (6456, 99320), (6994, 91680), (7449, 86080), (7640, 83928), (8070, 79456), (8608, 74490), (9168, 69940), (9932, 64560), (10491, 61120), (10760, 59592), (11460, 55952), (12224, 52455), (12415, 51648), (12480, 51379), (12912, 49660), (13988, 45840), (14898, 43040), (15280, 41964), (16140, 39728), (17216, 37245), (17485, 36672), (18336, 34970), (19864, 32280), (20982, 30560), (21520, 29796), (22920, 27976), (24830, 25824)]