320011280

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:672

約数の個数: 80

約数和(自身を含む): 763344000

約数和(自身を除く): 443332720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 151, 236, 295, 302, 449, 472, 590, 604, 755, 898, 944, 1180, 1208, 1510, 1796, 2245, 2360, 2416, 3020, 3592, 4490, 4720, 6040, 7184, 8909, 8980, 12080, 17818, 17960, 26491, 35636, 35920, 44545, 52982, 67799, 71272, 89090, 105964, 132455, 135598, 142544, 178180, 211928, 264910, 271196, 338995, 356360, 423856, 529820, 542392, 677990, 712720, 1059640, 1084784, 1355980, 2119280, 2711960, 4000141, 5423920, 8000282, 16000564, 20000705, 32001128, 40001410, 64002256, 80002820, 160005640, 320011280]

約数ペア:

[(1, 320011280), (2, 160005640), (4, 80002820), (5, 64002256), (8, 40001410), (10, 32001128), (16, 20000705), (20, 16000564), (40, 8000282), (59, 5423920), (80, 4000141), (118, 2711960), (151, 2119280), (236, 1355980), (295, 1084784), (302, 1059640), (449, 712720), (472, 677990), (590, 542392), (604, 529820), (755, 423856), (898, 356360), (944, 338995), (1180, 271196), (1208, 264910), (1510, 211928), (1796, 178180), (2245, 142544), (2360, 135598), (2416, 132455), (3020, 105964), (3592, 89090), (4490, 71272), (4720, 67799), (6040, 52982), (7184, 44545), (8909, 35920), (8980, 35636), (12080, 26491), (17818, 17960)]