1812520

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 4124520

約数和(自身を除く): 2312000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 401, 452, 565, 802, 904, 1130, 1604, 2005, 2260, 3208, 4010, 4520, 8020, 16040, 45313, 90626, 181252, 226565, 362504, 453130, 906260, 1812520]

約数ペア:

[(1, 1812520), (2, 906260), (4, 453130), (5, 362504), (8, 226565), (10, 181252), (20, 90626), (40, 45313), (113, 16040), (226, 8020), (401, 4520), (452, 4010), (565, 3208), (802, 2260), (904, 2005), (1130, 1604)]