31528120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60631}}^1$

素因数の和:60655

約数の個数: 32

約数和(自身を含む): 76396320

約数和(自身を除く): 44868200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60631, 121262, 242524, 303155, 485048, 606310, 788203, 1212620, 1576406, 2425240, 3152812, 3941015, 6305624, 7882030, 15764060, 31528120]

約数ペア:

[(1, 31528120), (2, 15764060), (4, 7882030), (5, 6305624), (8, 3941015), (10, 3152812), (13, 2425240), (20, 1576406), (26, 1212620), (40, 788203), (52, 606310), (65, 485048), (104, 303155), (130, 242524), (260, 121262), (520, 60631)]