139890290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{2521}}^1$

素因数の和:2738

約数の個数: 32

約数和(自身を含む): 261480960

約数和(自身を除く): 121590670

約数列:

[1, 2, 5, 10, 31, 62, 155, 179, 310, 358, 895, 1790, 2521, 5042, 5549, 11098, 12605, 25210, 27745, 55490, 78151, 156302, 390755, 451259, 781510, 902518, 2256295, 4512590, 13989029, 27978058, 69945145, 139890290]

約数ペア:

[(1, 139890290), (2, 69945145), (5, 27978058), (10, 13989029), (31, 4512590), (62, 2256295), (155, 902518), (179, 781510), (310, 451259), (358, 390755), (895, 156302), (1790, 78151), (2521, 55490), (5042, 27745), (5549, 25210), (11098, 12605)]