20005012

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 18298988

約数列:

[1, 2, 4, 29, 37, 58, 59, 74, 79, 116, 118, 148, 158, 236, 316, 1073, 1711, 2146, 2183, 2291, 2923, 3422, 4292, 4366, 4582, 4661, 5846, 6844, 8732, 9164, 9322, 11692, 18644, 63307, 84767, 126614, 135169, 169534, 172457, 253228, 270338, 339068, 344914, 540676, 689828, 5001253, 10002506, 20005012]

約数ペア:

[(1, 20005012), (2, 10002506), (4, 5001253), (29, 689828), (37, 540676), (58, 344914), (59, 339068), (74, 270338), (79, 253228), (116, 172457), (118, 169534), (148, 135169), (158, 126614), (236, 84767), (316, 63307), (1073, 18644), (1711, 11692), (2146, 9322), (2183, 9164), (2291, 8732), (2923, 6844), (3422, 5846), (4292, 4661), (4366, 4582)]