18415280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17707}}^1$

素因数の和:17733

約数の個数: 40

約数和(自身を含む): 46111632

約数和(自身を除く): 27696352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17707, 35414, 70828, 88535, 141656, 177070, 230191, 283312, 354140, 460382, 708280, 920764, 1150955, 1416560, 1841528, 2301910, 3683056, 4603820, 9207640, 18415280]

約数ペア:

[(1, 18415280), (2, 9207640), (4, 4603820), (5, 3683056), (8, 2301910), (10, 1841528), (13, 1416560), (16, 1150955), (20, 920764), (26, 708280), (40, 460382), (52, 354140), (65, 283312), (80, 230191), (104, 177070), (130, 141656), (208, 88535), (260, 70828), (520, 35414), (1040, 17707)]