17850933220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{81281}}^1$

素因数の和:81508

約数の個数: 48

約数和(自身を含む): 38235052800

約数和(自身を除く): 20384119580

約数列:

[1, 2, 4, 5, 10, 20, 79, 139, 158, 278, 316, 395, 556, 695, 790, 1390, 1580, 2780, 10981, 21962, 43924, 54905, 81281, 109810, 162562, 219620, 325124, 406405, 812810, 1625620, 6421199, 11298059, 12842398, 22596118, 25684796, 32105995, 45192236, 56490295, 64211990, 112980590, 128423980, 225961180, 892546661, 1785093322, 3570186644, 4462733305, 8925466610, 17850933220]

約数ペア:

[(1, 17850933220), (2, 8925466610), (4, 4462733305), (5, 3570186644), (10, 1785093322), (20, 892546661), (79, 225961180), (139, 128423980), (158, 112980590), (278, 64211990), (316, 56490295), (395, 45192236), (556, 32105995), (695, 25684796), (790, 22596118), (1390, 12842398), (1580, 11298059), (2780, 6421199), (10981, 1625620), (21962, 812810), (43924, 406405), (54905, 325124), (81281, 219620), (109810, 162562)]