90785960

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{5717}}^1$

素因数の和:6125

約数の個数: 32

約数和(自身を含む): 204818760

約数和(自身を除く): 114032800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 5717, 7940, 11434, 15880, 22868, 28585, 45736, 57170, 114340, 228680, 2269649, 4539298, 9078596, 11348245, 18157192, 22696490, 45392980, 90785960]

約数ペア:

[(1, 90785960), (2, 45392980), (4, 22696490), (5, 18157192), (8, 11348245), (10, 9078596), (20, 4539298), (40, 2269649), (397, 228680), (794, 114340), (1588, 57170), (1985, 45736), (3176, 28585), (3970, 22868), (5717, 15880), (7940, 11434)]