85982620

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 183949920

約数和(自身を除く): 97967300

約数列:

[1, 2, 4, 5, 10, 20, 139, 157, 197, 278, 314, 394, 556, 628, 695, 785, 788, 985, 1390, 1570, 1970, 2780, 3140, 3940, 21823, 27383, 30929, 43646, 54766, 61858, 87292, 109115, 109532, 123716, 136915, 154645, 218230, 273830, 309290, 436460, 547660, 618580, 4299131, 8598262, 17196524, 21495655, 42991310, 85982620]

約数ペア:

[(1, 85982620), (2, 42991310), (4, 21495655), (5, 17196524), (10, 8598262), (20, 4299131), (139, 618580), (157, 547660), (197, 436460), (278, 309290), (314, 273830), (394, 218230), (556, 154645), (628, 136915), (695, 123716), (785, 109532), (788, 109115), (985, 87292), (1390, 61858), (1570, 54766), (1970, 43646), (2780, 30929), (3140, 27383), (3940, 21823)]