31212040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25171}}^1$

素因数の和:25213

約数の個数: 32

約数和(自身を含む): 72495360

約数和(自身を除く): 41283320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25171, 50342, 100684, 125855, 201368, 251710, 503420, 780301, 1006840, 1560602, 3121204, 3901505, 6242408, 7803010, 15606020, 31212040]

約数ペア:

[(1, 31212040), (2, 15606020), (4, 7803010), (5, 6242408), (8, 3901505), (10, 3121204), (20, 1560602), (31, 1006840), (40, 780301), (62, 503420), (124, 251710), (155, 201368), (248, 125855), (310, 100684), (620, 50342), (1240, 25171)]