18254560

素因数分解:

$2^5\times 5^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 43388352

約数和(自身を除く): 25133792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 271, 421, 542, 842, 1084, 1355, 1684, 2105, 2168, 2710, 3368, 4210, 4336, 5420, 6736, 8420, 8672, 10840, 13472, 16840, 21680, 33680, 43360, 67360, 114091, 228182, 456364, 570455, 912728, 1140910, 1825456, 2281820, 3650912, 4563640, 9127280, 18254560]

約数ペア:

[(1, 18254560), (2, 9127280), (4, 4563640), (5, 3650912), (8, 2281820), (10, 1825456), (16, 1140910), (20, 912728), (32, 570455), (40, 456364), (80, 228182), (160, 114091), (271, 67360), (421, 43360), (542, 33680), (842, 21680), (1084, 16840), (1355, 13472), (1684, 10840), (2105, 8672), (2168, 8420), (2710, 6736), (3368, 5420), (4210, 4336)]