31442680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25357}}^1$

素因数の和:25399

約数の個数: 32

約数和(自身を含む): 73031040

約数和(自身を除く): 41588360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25357, 50714, 101428, 126785, 202856, 253570, 507140, 786067, 1014280, 1572134, 3144268, 3930335, 6288536, 7860670, 15721340, 31442680]

約数ペア:

[(1, 31442680), (2, 15721340), (4, 7860670), (5, 6288536), (8, 3930335), (10, 3144268), (20, 1572134), (31, 1014280), (40, 786067), (62, 507140), (124, 253570), (155, 202856), (248, 126785), (310, 101428), (620, 50714), (1240, 25357)]