19692920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37871}}^1$

素因数の和:37895

約数の個数: 32

約数和(自身を含む): 47718720

約数和(自身を除く): 28025800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37871, 75742, 151484, 189355, 302968, 378710, 492323, 757420, 984646, 1514840, 1969292, 2461615, 3938584, 4923230, 9846460, 19692920]

約数ペア:

[(1, 19692920), (2, 9846460), (4, 4923230), (5, 3938584), (8, 2461615), (10, 1969292), (13, 1514840), (20, 984646), (26, 757420), (40, 492323), (52, 378710), (65, 302968), (104, 189355), (130, 151484), (260, 75742), (520, 37871)]