18760820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1223}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 24421900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1223, 1534, 2446, 3068, 3835, 4892, 6115, 7670, 12230, 15340, 15899, 24460, 31798, 63596, 72157, 79495, 144314, 158990, 288628, 317980, 360785, 721570, 938041, 1443140, 1876082, 3752164, 4690205, 9380410, 18760820]

約数ペア:

[(1, 18760820), (2, 9380410), (4, 4690205), (5, 3752164), (10, 1876082), (13, 1443140), (20, 938041), (26, 721570), (52, 360785), (59, 317980), (65, 288628), (118, 158990), (130, 144314), (236, 79495), (260, 72157), (295, 63596), (590, 31798), (767, 24460), (1180, 15899), (1223, 15340), (1534, 12230), (2446, 7670), (3068, 6115), (3835, 4892)]