18004640

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{859}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 42910560

約数和(自身を除く): 24905920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 859, 1048, 1310, 1718, 2096, 2620, 3436, 4192, 4295, 5240, 6872, 8590, 10480, 13744, 17180, 20960, 27488, 34360, 68720, 112529, 137440, 225058, 450116, 562645, 900232, 1125290, 1800464, 2250580, 3600928, 4501160, 9002320, 18004640]

約数ペア:

[(1, 18004640), (2, 9002320), (4, 4501160), (5, 3600928), (8, 2250580), (10, 1800464), (16, 1125290), (20, 900232), (32, 562645), (40, 450116), (80, 225058), (131, 137440), (160, 112529), (262, 68720), (524, 34360), (655, 27488), (859, 20960), (1048, 17180), (1310, 13744), (1718, 10480), (2096, 8590), (2620, 6872), (3436, 5240), (4192, 4295)]