305240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{587}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 740880

約数和(自身を除く): 435640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 587, 1174, 2348, 2935, 4696, 5870, 7631, 11740, 15262, 23480, 30524, 38155, 61048, 76310, 152620, 305240]

約数ペア:

[(1, 305240), (2, 152620), (4, 76310), (5, 61048), (8, 38155), (10, 30524), (13, 23480), (20, 15262), (26, 11740), (40, 7631), (52, 5870), (65, 4696), (104, 2935), (130, 2348), (260, 1174), (520, 587)]