81823160

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9173}}^1$

素因数の和:9407

約数の個数: 32

約数和(自身を含む): 184947840

約数和(自身を除く): 103124680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 9173, 18346, 36692, 45865, 73384, 91730, 183460, 366920, 2045579, 4091158, 8182316, 10227895, 16364632, 20455790, 40911580, 81823160]

約数ペア:

[(1, 81823160), (2, 40911580), (4, 20455790), (5, 16364632), (8, 10227895), (10, 8182316), (20, 4091158), (40, 2045579), (223, 366920), (446, 183460), (892, 91730), (1115, 73384), (1784, 45865), (2230, 36692), (4460, 18346), (8920, 9173)]