284435620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{6491}}^1$

素因数の和:6820

約数の個数: 48

約数和(自身を含む): 684931968

約数和(自身を除く): 400496348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 626, 1252, 1565, 2191, 3130, 4382, 6260, 6491, 8764, 10955, 12982, 21910, 25964, 32455, 43820, 45437, 64910, 90874, 129820, 181748, 227185, 454370, 908740, 2031683, 4063366, 8126732, 10158415, 14221781, 20316830, 28443562, 40633660, 56887124, 71108905, 142217810, 284435620]

約数ペア:

[(1, 284435620), (2, 142217810), (4, 71108905), (5, 56887124), (7, 40633660), (10, 28443562), (14, 20316830), (20, 14221781), (28, 10158415), (35, 8126732), (70, 4063366), (140, 2031683), (313, 908740), (626, 454370), (1252, 227185), (1565, 181748), (2191, 129820), (3130, 90874), (4382, 64910), (6260, 45437), (6491, 43820), (8764, 32455), (10955, 25964), (12982, 21910)]