61951220

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{20789}}^1$

素因数の和:20947

約数の個数: 24

約数和(自身を含む): 130977000

約数和(自身を除く): 69025780

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 20789, 41578, 83156, 103945, 207890, 415780, 3097561, 6195122, 12390244, 15487805, 30975610, 61951220]

約数ペア:

[(1, 61951220), (2, 30975610), (4, 15487805), (5, 12390244), (10, 6195122), (20, 3097561), (149, 415780), (298, 207890), (596, 103945), (745, 83156), (1490, 41578), (2980, 20789)]