8390620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 20438208

約数和(自身を除く): 12047588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 821, 1022, 1460, 1642, 2044, 2555, 3284, 4105, 5110, 5747, 8210, 10220, 11494, 16420, 22988, 28735, 57470, 59933, 114940, 119866, 239732, 299665, 419531, 599330, 839062, 1198660, 1678124, 2097655, 4195310, 8390620]

約数ペア:

[(1, 8390620), (2, 4195310), (4, 2097655), (5, 1678124), (7, 1198660), (10, 839062), (14, 599330), (20, 419531), (28, 299665), (35, 239732), (70, 119866), (73, 114940), (140, 59933), (146, 57470), (292, 28735), (365, 22988), (511, 16420), (730, 11494), (821, 10220), (1022, 8210), (1460, 5747), (1642, 5110), (2044, 4105), (2555, 3284)]