17966505980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2531}}^1\times {\mathrm{4999}}^1$

素因数の和:7610

約数の個数: 48

約数和(自身を含む): 38283840000

約数和(自身を除く): 20317334020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 2531, 4999, 5062, 9998, 10124, 12655, 19996, 24995, 25310, 49990, 50620, 99980, 179701, 354929, 359402, 709858, 718804, 898505, 1419716, 1774645, 1797010, 3549290, 3594020, 7098580, 12652469, 25304938, 50609876, 63262345, 126524690, 253049380, 898325299, 1796650598, 3593301196, 4491626495, 8983252990, 17966505980]

約数ペア:

[(1, 17966505980), (2, 8983252990), (4, 4491626495), (5, 3593301196), (10, 1796650598), (20, 898325299), (71, 253049380), (142, 126524690), (284, 63262345), (355, 50609876), (710, 25304938), (1420, 12652469), (2531, 7098580), (4999, 3594020), (5062, 3549290), (9998, 1797010), (10124, 1774645), (12655, 1419716), (19996, 898505), (24995, 718804), (25310, 709858), (49990, 359402), (50620, 354929), (99980, 179701)]