18084940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1237}}^1$

素因数の和:1306

約数の個数: 48

約数和(自身を含む): 41180832

約数和(自身を除く): 23095892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1237, 1462, 2474, 2924, 3655, 4948, 6185, 7310, 12370, 14620, 21029, 24740, 42058, 53191, 84116, 105145, 106382, 210290, 212764, 265955, 420580, 531910, 904247, 1063820, 1808494, 3616988, 4521235, 9042470, 18084940]

約数ペア:

[(1, 18084940), (2, 9042470), (4, 4521235), (5, 3616988), (10, 1808494), (17, 1063820), (20, 904247), (34, 531910), (43, 420580), (68, 265955), (85, 212764), (86, 210290), (170, 106382), (172, 105145), (215, 84116), (340, 53191), (430, 42058), (731, 24740), (860, 21029), (1237, 14620), (1462, 12370), (2474, 7310), (2924, 6185), (3655, 4948)]