18880360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12757}}^1$

素因数の和:12805

約数の個数: 32

約数和(自身を含む): 43632360

約数和(自身を除く): 24752000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12757, 25514, 51028, 63785, 102056, 127570, 255140, 472009, 510280, 944018, 1888036, 2360045, 3776072, 4720090, 9440180, 18880360]

約数ペア:

[(1, 18880360), (2, 9440180), (4, 4720090), (5, 3776072), (8, 2360045), (10, 1888036), (20, 944018), (37, 510280), (40, 472009), (74, 255140), (148, 127570), (185, 102056), (296, 63785), (370, 51028), (740, 25514), (1480, 12757)]