18780564

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1949}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 48484800

約数和(自身を除く): 29704236

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 73, 132, 146, 219, 292, 438, 803, 876, 1606, 1949, 2409, 3212, 3898, 4818, 5847, 7796, 9636, 11694, 21439, 23388, 42878, 64317, 85756, 128634, 142277, 257268, 284554, 426831, 569108, 853662, 1565047, 1707324, 3130094, 4695141, 6260188, 9390282, 18780564]

約数ペア:

[(1, 18780564), (2, 9390282), (3, 6260188), (4, 4695141), (6, 3130094), (11, 1707324), (12, 1565047), (22, 853662), (33, 569108), (44, 426831), (66, 284554), (73, 257268), (132, 142277), (146, 128634), (219, 85756), (292, 64317), (438, 42878), (803, 23388), (876, 21439), (1606, 11694), (1949, 9636), (2409, 7796), (3212, 5847), (3898, 4818)]