180907960

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{28807}}^1$

素因数の和:28975

約数の個数: 32

約数和(自身を含む): 409649760

約数和(自身を除く): 228741800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 28807, 57614, 115228, 144035, 230456, 288070, 576140, 1152280, 4522699, 9045398, 18090796, 22613495, 36181592, 45226990, 90453980, 180907960]

約数ペア:

[(1, 180907960), (2, 90453980), (4, 45226990), (5, 36181592), (8, 22613495), (10, 18090796), (20, 9045398), (40, 4522699), (157, 1152280), (314, 576140), (628, 288070), (785, 230456), (1256, 144035), (1570, 115228), (3140, 57614), (6280, 28807)]