253240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 614880

約数和(自身を除く): 361640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 487, 520, 974, 1948, 2435, 3896, 4870, 6331, 9740, 12662, 19480, 25324, 31655, 50648, 63310, 126620, 253240]

約数ペア:

[(1, 253240), (2, 126620), (4, 63310), (5, 50648), (8, 31655), (10, 25324), (13, 19480), (20, 12662), (26, 9740), (40, 6331), (52, 4870), (65, 3896), (104, 2435), (130, 1948), (260, 974), (487, 520)]