387614980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1\times {\mathrm{977}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 828092160

約数和(自身を除く): 440477180

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 239, 332, 415, 478, 830, 956, 977, 1195, 1660, 1954, 2390, 3908, 4780, 4885, 9770, 19540, 19837, 39674, 79348, 81091, 99185, 162182, 198370, 233503, 324364, 396740, 405455, 467006, 810910, 934012, 1167515, 1621820, 2335030, 4670060, 19380749, 38761498, 77522996, 96903745, 193807490, 387614980]

約数ペア:

[(1, 387614980), (2, 193807490), (4, 96903745), (5, 77522996), (10, 38761498), (20, 19380749), (83, 4670060), (166, 2335030), (239, 1621820), (332, 1167515), (415, 934012), (478, 810910), (830, 467006), (956, 405455), (977, 396740), (1195, 324364), (1660, 233503), (1954, 198370), (2390, 162182), (3908, 99185), (4780, 81091), (4885, 79348), (9770, 39674), (19540, 19837)]