28791318530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1\times {\mathrm{6659}}^1$

素因数の和:7179

約数の個数: 64

約数和(自身を含む): 56660083200

約数和(自身を除く): 27868764670

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 421, 790, 842, 1027, 2054, 2105, 4210, 5135, 5473, 6659, 10270, 10946, 13318, 27365, 33259, 33295, 54730, 66518, 66590, 86567, 166295, 173134, 332590, 432367, 432835, 526061, 864734, 865670, 1052122, 2161835, 2630305, 2803439, 4323670, 5260610, 5606878, 6838793, 13677586, 14017195, 28034390, 34193965, 36444707, 68387930, 72889414, 182223535, 221471681, 364447070, 442943362, 1107358405, 2214716810, 2879131853, 5758263706, 14395659265, 28791318530]

約数ペア:

[(1, 28791318530), (2, 14395659265), (5, 5758263706), (10, 2879131853), (13, 2214716810), (26, 1107358405), (65, 442943362), (79, 364447070), (130, 221471681), (158, 182223535), (395, 72889414), (421, 68387930), (790, 36444707), (842, 34193965), (1027, 28034390), (2054, 14017195), (2105, 13677586), (4210, 6838793), (5135, 5606878), (5473, 5260610), (6659, 4323670), (10270, 2803439), (10946, 2630305), (13318, 2161835), (27365, 1052122), (33259, 865670), (33295, 864734), (54730, 526061), (66518, 432835), (66590, 432367), (86567, 332590), (166295, 173134)]