19488820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3259}}^1$

素因数の和:3304

約数の個数: 48

約数和(自身を含む): 46005120

約数和(自身を除く): 26516300

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3259, 5980, 6518, 13036, 16295, 32590, 42367, 65180, 74957, 84734, 149914, 169468, 211835, 299828, 374785, 423670, 749570, 847340, 974441, 1499140, 1948882, 3897764, 4872205, 9744410, 19488820]

約数ペア:

[(1, 19488820), (2, 9744410), (4, 4872205), (5, 3897764), (10, 1948882), (13, 1499140), (20, 974441), (23, 847340), (26, 749570), (46, 423670), (52, 374785), (65, 299828), (92, 211835), (115, 169468), (130, 149914), (230, 84734), (260, 74957), (299, 65180), (460, 42367), (598, 32590), (1196, 16295), (1495, 13036), (2990, 6518), (3259, 5980)]