855405740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{872863}}^1$

素因数の和:872886

約数の個数: 36

約数和(自身を含む): 2089636416

約数和(自身を除く): 1234230676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 872863, 1745726, 3491452, 4364315, 6110041, 8728630, 12220082, 17457260, 24440164, 30550205, 42770287, 61100410, 85540574, 122200820, 171081148, 213851435, 427702870, 855405740]

約数ペア:

[(1, 855405740), (2, 427702870), (4, 213851435), (5, 171081148), (7, 122200820), (10, 85540574), (14, 61100410), (20, 42770287), (28, 30550205), (35, 24440164), (49, 17457260), (70, 12220082), (98, 8728630), (140, 6110041), (196, 4364315), (245, 3491452), (490, 1745726), (980, 872863)]