12640330070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1\times {\mathrm{857}}^1$

素因数の和:1553

約数の個数: 64

約数和(自身を含む): 24185304000

約数和(自身を除く): 11544973930

約数列:

[1, 2, 5, 10, 19, 38, 95, 149, 190, 298, 521, 745, 857, 1042, 1490, 1714, 2605, 2831, 4285, 5210, 5662, 8570, 9899, 14155, 16283, 19798, 28310, 32566, 49495, 77629, 81415, 98990, 127693, 155258, 162830, 255386, 388145, 446497, 638465, 776290, 892994, 1276930, 1474951, 2232485, 2426167, 2949902, 4464970, 4852334, 7374755, 8483443, 12130835, 14749510, 16966886, 24261670, 42417215, 66528053, 84834430, 133056106, 332640265, 665280530, 1264033007, 2528066014, 6320165035, 12640330070]

約数ペア:

[(1, 12640330070), (2, 6320165035), (5, 2528066014), (10, 1264033007), (19, 665280530), (38, 332640265), (95, 133056106), (149, 84834430), (190, 66528053), (298, 42417215), (521, 24261670), (745, 16966886), (857, 14749510), (1042, 12130835), (1490, 8483443), (1714, 7374755), (2605, 4852334), (2831, 4464970), (4285, 2949902), (5210, 2426167), (5662, 2232485), (8570, 1474951), (9899, 1276930), (14155, 892994), (16283, 776290), (19798, 638465), (28310, 446497), (32566, 388145), (49495, 255386), (77629, 162830), (81415, 155258), (98990, 127693)]