18831080

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6449}}^1$

素因数の和:6533

約数の個数: 32

約数和(自身を含む): 42957000

約数和(自身を除く): 24125920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6449, 12898, 25796, 32245, 51592, 64490, 128980, 257960, 470777, 941554, 1883108, 2353885, 3766216, 4707770, 9415540, 18831080]

約数ペア:

[(1, 18831080), (2, 9415540), (4, 4707770), (5, 3766216), (8, 2353885), (10, 1883108), (20, 941554), (40, 470777), (73, 257960), (146, 128980), (292, 64490), (365, 51592), (584, 32245), (730, 25796), (1460, 12898), (2920, 6449)]