86421860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4441}}^1$

素因数の和:4596

約数の個数: 48

約数和(自身を含む): 208951680

約数和(自身を除く): 122529820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4441, 4865, 8882, 9730, 17764, 19460, 22205, 31087, 44410, 62174, 88820, 124348, 155435, 310870, 617299, 621740, 1234598, 2469196, 3086495, 4321093, 6172990, 8642186, 12345980, 17284372, 21605465, 43210930, 86421860]

約数ペア:

[(1, 86421860), (2, 43210930), (4, 21605465), (5, 17284372), (7, 12345980), (10, 8642186), (14, 6172990), (20, 4321093), (28, 3086495), (35, 2469196), (70, 1234598), (139, 621740), (140, 617299), (278, 310870), (556, 155435), (695, 124348), (973, 88820), (1390, 62174), (1946, 44410), (2780, 31087), (3892, 22205), (4441, 19460), (4865, 17764), (8882, 9730)]