15808540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 36507744

約数和(自身を除く): 20699204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 397, 724, 794, 905, 1588, 1810, 1985, 1991, 3620, 3970, 3982, 4367, 7940, 7964, 8734, 9955, 17468, 19910, 21835, 39820, 43670, 71857, 87340, 143714, 287428, 359285, 718570, 790427, 1437140, 1580854, 3161708, 3952135, 7904270, 15808540]

約数ペア:

[(1, 15808540), (2, 7904270), (4, 3952135), (5, 3161708), (10, 1580854), (11, 1437140), (20, 790427), (22, 718570), (44, 359285), (55, 287428), (110, 143714), (181, 87340), (220, 71857), (362, 43670), (397, 39820), (724, 21835), (794, 19910), (905, 17468), (1588, 9955), (1810, 8734), (1985, 7964), (1991, 7940), (3620, 4367), (3970, 3982)]