90780980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1831}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 198823296

約数和(自身を除く): 108042316

約数列:

[1, 2, 4, 5, 10, 20, 37, 67, 74, 134, 148, 185, 268, 335, 370, 670, 740, 1340, 1831, 2479, 3662, 4958, 7324, 9155, 9916, 12395, 18310, 24790, 36620, 49580, 67747, 122677, 135494, 245354, 270988, 338735, 490708, 613385, 677470, 1226770, 1354940, 2453540, 4539049, 9078098, 18156196, 22695245, 45390490, 90780980]

約数ペア:

[(1, 90780980), (2, 45390490), (4, 22695245), (5, 18156196), (10, 9078098), (20, 4539049), (37, 2453540), (67, 1354940), (74, 1226770), (134, 677470), (148, 613385), (185, 490708), (268, 338735), (335, 270988), (370, 245354), (670, 135494), (740, 122677), (1340, 67747), (1831, 49580), (2479, 36620), (3662, 24790), (4958, 18310), (7324, 12395), (9155, 9916)]