55815460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{31357}}^1$

素因数の和:31455

約数の個数: 24

約数和(自身を含む): 118533240

約数和(自身を除く): 62717780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 31357, 62714, 125428, 156785, 313570, 627140, 2790773, 5581546, 11163092, 13953865, 27907730, 55815460]

約数ペア:

[(1, 55815460), (2, 27907730), (4, 13953865), (5, 11163092), (10, 5581546), (20, 2790773), (89, 627140), (178, 313570), (356, 156785), (445, 125428), (890, 62714), (1780, 31357)]