20487804

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{521}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 49986720

約数和(自身を除く): 29498916

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 113, 116, 174, 226, 339, 348, 452, 521, 678, 1042, 1356, 1563, 2084, 3126, 3277, 6252, 6554, 9831, 13108, 15109, 19662, 30218, 39324, 45327, 58873, 60436, 90654, 117746, 176619, 181308, 235492, 353238, 706476, 1707317, 3414634, 5121951, 6829268, 10243902, 20487804]

約数ペア:

[(1, 20487804), (2, 10243902), (3, 6829268), (4, 5121951), (6, 3414634), (12, 1707317), (29, 706476), (58, 353238), (87, 235492), (113, 181308), (116, 176619), (174, 117746), (226, 90654), (339, 60436), (348, 58873), (452, 45327), (521, 39324), (678, 30218), (1042, 19662), (1356, 15109), (1563, 13108), (2084, 9831), (3126, 6554), (3277, 6252)]