66398120

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{3697}}^1$

素因数の和:4157

約数の個数: 32

約数和(自身を含む): 149769000

約数和(自身を除く): 83370880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2245, 3592, 3697, 4490, 7394, 8980, 14788, 17960, 18485, 29576, 36970, 73940, 147880, 1659953, 3319906, 6639812, 8299765, 13279624, 16599530, 33199060, 66398120]

約数ペア:

[(1, 66398120), (2, 33199060), (4, 16599530), (5, 13279624), (8, 8299765), (10, 6639812), (20, 3319906), (40, 1659953), (449, 147880), (898, 73940), (1796, 36970), (2245, 29576), (3592, 18485), (3697, 17960), (4490, 14788), (7394, 8980)]