8772920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16871}}^1$

素因数の和:16895

約数の個数: 32

約数和(自身を含む): 21258720

約数和(自身を除く): 12485800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16871, 33742, 67484, 84355, 134968, 168710, 219323, 337420, 438646, 674840, 877292, 1096615, 1754584, 2193230, 4386460, 8772920]

約数ペア:

[(1, 8772920), (2, 4386460), (4, 2193230), (5, 1754584), (8, 1096615), (10, 877292), (13, 674840), (20, 438646), (26, 337420), (40, 219323), (52, 168710), (65, 134968), (104, 84355), (130, 67484), (260, 33742), (520, 16871)]