19458920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1627}}^1$

素因数の和:1674

約数の個数: 64

約数和(自身を含む): 49230720

約数和(自身を除く): 29771800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 1627, 2392, 2990, 3254, 5980, 6508, 8135, 11960, 13016, 16270, 21151, 32540, 37421, 42302, 65080, 74842, 84604, 105755, 149684, 169208, 187105, 211510, 299368, 374210, 423020, 486473, 748420, 846040, 972946, 1496840, 1945892, 2432365, 3891784, 4864730, 9729460, 19458920]

約数ペア:

[(1, 19458920), (2, 9729460), (4, 4864730), (5, 3891784), (8, 2432365), (10, 1945892), (13, 1496840), (20, 972946), (23, 846040), (26, 748420), (40, 486473), (46, 423020), (52, 374210), (65, 299368), (92, 211510), (104, 187105), (115, 169208), (130, 149684), (184, 105755), (230, 84604), (260, 74842), (299, 65080), (460, 42302), (520, 37421), (598, 32540), (920, 21151), (1196, 16270), (1495, 13016), (1627, 11960), (2392, 8135), (2990, 6508), (3254, 5980)]