20197340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 24255460

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 359, 388, 485, 580, 718, 970, 1436, 1795, 1940, 2813, 3590, 5626, 7180, 10411, 11252, 14065, 20822, 28130, 34823, 41644, 52055, 56260, 69646, 104110, 139292, 174115, 208220, 348230, 696460, 1009867, 2019734, 4039468, 5049335, 10098670, 20197340]

約数ペア:

[(1, 20197340), (2, 10098670), (4, 5049335), (5, 4039468), (10, 2019734), (20, 1009867), (29, 696460), (58, 348230), (97, 208220), (116, 174115), (145, 139292), (194, 104110), (290, 69646), (359, 56260), (388, 52055), (485, 41644), (580, 34823), (718, 28130), (970, 20822), (1436, 14065), (1795, 11252), (1940, 10411), (2813, 7180), (3590, 5626)]