20301650

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 39533184

約数和(自身を除く): 19231534

約数列:

[1, 2, 5, 10, 25, 47, 50, 53, 94, 106, 163, 235, 265, 326, 470, 530, 815, 1175, 1325, 1630, 2350, 2491, 2650, 4075, 4982, 7661, 8150, 8639, 12455, 15322, 17278, 24910, 38305, 43195, 62275, 76610, 86390, 124550, 191525, 215975, 383050, 406033, 431950, 812066, 2030165, 4060330, 10150825, 20301650]

約数ペア:

[(1, 20301650), (2, 10150825), (5, 4060330), (10, 2030165), (25, 812066), (47, 431950), (50, 406033), (53, 383050), (94, 215975), (106, 191525), (163, 124550), (235, 86390), (265, 76610), (326, 62275), (470, 43195), (530, 38305), (815, 24910), (1175, 17278), (1325, 15322), (1630, 12455), (2350, 8639), (2491, 8150), (2650, 7661), (4075, 4982)]