1625780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1$

素因数の和:85

約数の個数: 48

約数和(自身を含む): 3798480

約数和(自身を除く): 2172700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 481, 676, 740, 845, 962, 1690, 1924, 2197, 2405, 3380, 4394, 4810, 6253, 8788, 9620, 10985, 12506, 21970, 25012, 31265, 43940, 62530, 81289, 125060, 162578, 325156, 406445, 812890, 1625780]

約数ペア:

[(1, 1625780), (2, 812890), (4, 406445), (5, 325156), (10, 162578), (13, 125060), (20, 81289), (26, 62530), (37, 43940), (52, 31265), (65, 25012), (74, 21970), (130, 12506), (148, 10985), (169, 9620), (185, 8788), (260, 6253), (338, 4810), (370, 4394), (481, 3380), (676, 2405), (740, 2197), (845, 1924), (962, 1690)]