20876180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3491}}^1$

素因数の和:3536

約数の個数: 48

約数和(自身を含む): 49279104

約数和(自身を除く): 28402924

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, 3491, 5980, 6982, 13964, 17455, 34910, 45383, 69820, 80293, 90766, 160586, 181532, 226915, 321172, 401465, 453830, 802930, 907660, 1043809, 1605860, 2087618, 4175236, 5219045, 10438090, 20876180]

約数ペア:

[(1, 20876180), (2, 10438090), (4, 5219045), (5, 4175236), (10, 2087618), (13, 1605860), (20, 1043809), (23, 907660), (26, 802930), (46, 453830), (52, 401465), (65, 321172), (92, 226915), (115, 181532), (130, 160586), (230, 90766), (260, 80293), (299, 69820), (460, 45383), (598, 34910), (1196, 17455), (1495, 13964), (2990, 6982), (3491, 5980)]