399677020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1\times {\mathrm{811}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 862285536

約数和(自身を除く): 462608516

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 601, 811, 820, 1202, 1622, 2404, 3005, 3244, 4055, 6010, 8110, 12020, 16220, 24641, 33251, 49282, 66502, 98564, 123205, 133004, 166255, 246410, 332510, 487411, 492820, 665020, 974822, 1949644, 2437055, 4874110, 9748220, 19983851, 39967702, 79935404, 99919255, 199838510, 399677020]

約数ペア:

[(1, 399677020), (2, 199838510), (4, 99919255), (5, 79935404), (10, 39967702), (20, 19983851), (41, 9748220), (82, 4874110), (164, 2437055), (205, 1949644), (410, 974822), (601, 665020), (811, 492820), (820, 487411), (1202, 332510), (1622, 246410), (2404, 166255), (3005, 133004), (3244, 123205), (4055, 98564), (6010, 66502), (8110, 49282), (12020, 33251), (16220, 24641)]