61713220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 132652800

約数和(自身を除く): 70939580

約数列:

[1, 2, 4, 5, 10, 20, 79, 139, 158, 278, 281, 316, 395, 556, 562, 695, 790, 1124, 1390, 1405, 1580, 2780, 2810, 5620, 10981, 21962, 22199, 39059, 43924, 44398, 54905, 78118, 88796, 109810, 110995, 156236, 195295, 219620, 221990, 390590, 443980, 781180, 3085661, 6171322, 12342644, 15428305, 30856610, 61713220]

約数ペア:

[(1, 61713220), (2, 30856610), (4, 15428305), (5, 12342644), (10, 6171322), (20, 3085661), (79, 781180), (139, 443980), (158, 390590), (278, 221990), (281, 219620), (316, 195295), (395, 156236), (556, 110995), (562, 109810), (695, 88796), (790, 78118), (1124, 54905), (1390, 44398), (1405, 43924), (1580, 39059), (2780, 22199), (2810, 21962), (5620, 10981)]