212937400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{81899}}^1$

素因数の和:81928

約数の個数: 48

約数和(自身を含む): 533169000

約数和(自身を除く): 320231600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 81899, 163798, 327596, 409495, 655192, 818990, 1064687, 1637980, 2047475, 2129374, 3275960, 4094950, 4258748, 5323435, 8189900, 8517496, 10646870, 16379800, 21293740, 26617175, 42587480, 53234350, 106468700, 212937400]

約数ペア:

[(1, 212937400), (2, 106468700), (4, 53234350), (5, 42587480), (8, 26617175), (10, 21293740), (13, 16379800), (20, 10646870), (25, 8517496), (26, 8189900), (40, 5323435), (50, 4258748), (52, 4094950), (65, 3275960), (100, 2129374), (104, 2047475), (130, 1637980), (200, 1064687), (260, 818990), (325, 655192), (520, 409495), (650, 327596), (1300, 163798), (2600, 81899)]