131420120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{252731}}^1$

素因数の和:252755

約数の個数: 32

約数和(自身を含む): 318442320

約数和(自身を除く): 187022200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 252731, 505462, 1010924, 1263655, 2021848, 2527310, 3285503, 5054620, 6571006, 10109240, 13142012, 16427515, 26284024, 32855030, 65710060, 131420120]

約数ペア:

[(1, 131420120), (2, 65710060), (4, 32855030), (5, 26284024), (8, 16427515), (10, 13142012), (13, 10109240), (20, 6571006), (26, 5054620), (40, 3285503), (52, 2527310), (65, 2021848), (104, 1263655), (130, 1010924), (260, 505462), (520, 252731)]