20070698920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{147709}}^1$

素因数の和:147842

約数の個数: 64

約数和(自身を含む): 46794528000

約数和(自身を除く): 26723829080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 632, 790, 860, 1580, 1720, 3160, 3397, 6794, 13588, 16985, 27176, 33970, 67940, 135880, 147709, 295418, 590836, 738545, 1181672, 1477090, 2954180, 5908360, 6351487, 11669011, 12702974, 23338022, 25405948, 31757435, 46676044, 50811896, 58345055, 63514870, 93352088, 116690110, 127029740, 233380220, 254059480, 466760440, 501767473, 1003534946, 2007069892, 2508837365, 4014139784, 5017674730, 10035349460, 20070698920]

約数ペア:

[(1, 20070698920), (2, 10035349460), (4, 5017674730), (5, 4014139784), (8, 2508837365), (10, 2007069892), (20, 1003534946), (40, 501767473), (43, 466760440), (79, 254059480), (86, 233380220), (158, 127029740), (172, 116690110), (215, 93352088), (316, 63514870), (344, 58345055), (395, 50811896), (430, 46676044), (632, 31757435), (790, 25405948), (860, 23338022), (1580, 12702974), (1720, 11669011), (3160, 6351487), (3397, 5908360), (6794, 2954180), (13588, 1477090), (16985, 1181672), (27176, 738545), (33970, 590836), (67940, 295418), (135880, 147709)]