51191920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49223}}^1$

素因数の和:49249

約数の個数: 40

約数和(自身を含む): 128179296

約数和(自身を除く): 76987376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 49223, 98446, 196892, 246115, 393784, 492230, 639899, 787568, 984460, 1279798, 1968920, 2559596, 3199495, 3937840, 5119192, 6398990, 10238384, 12797980, 25595960, 51191920]

約数ペア:

[(1, 51191920), (2, 25595960), (4, 12797980), (5, 10238384), (8, 6398990), (10, 5119192), (13, 3937840), (16, 3199495), (20, 2559596), (26, 1968920), (40, 1279798), (52, 984460), (65, 787568), (80, 639899), (104, 492230), (130, 393784), (208, 246115), (260, 196892), (520, 98446), (1040, 49223)]