18199780

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8053}}^1$

素因数の和:8175

約数の個数: 24

約数和(自身を含む): 38562552

約数和(自身を除く): 20362772

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8053, 16106, 32212, 40265, 80530, 161060, 909989, 1819978, 3639956, 4549945, 9099890, 18199780]

約数ペア:

[(1, 18199780), (2, 9099890), (4, 4549945), (5, 3639956), (10, 1819978), (20, 909989), (113, 161060), (226, 80530), (452, 40265), (565, 32212), (1130, 16106), (2260, 8053)]