20123691812

素因数分解:

$2^2\times 7^2\times {\mathrm{331}}^1\times {\mathrm{310187}}^1$

素因数の和:310536

約数の個数: 36

約数和(自身を含む): 41089983984

約数和(自身を除く): 20966292172

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 331, 662, 1324, 2317, 4634, 9268, 16219, 32438, 64876, 310187, 620374, 1240748, 2171309, 4342618, 8685236, 15199163, 30398326, 60796652, 102671897, 205343794, 410687588, 718703279, 1437406558, 2874813116, 5030922953, 10061845906, 20123691812]

約数ペア:

[(1, 20123691812), (2, 10061845906), (4, 5030922953), (7, 2874813116), (14, 1437406558), (28, 718703279), (49, 410687588), (98, 205343794), (196, 102671897), (331, 60796652), (662, 30398326), (1324, 15199163), (2317, 8685236), (4634, 4342618), (9268, 2171309), (16219, 1240748), (32438, 620374), (64876, 310187)]