400161890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{367121}}^1$

素因数の和:367237

約数の個数: 16

約数和(自身を含む): 726901560

約数和(自身を除く): 326739670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 367121, 734242, 1835605, 3671210, 40016189, 80032378, 200080945, 400161890]

約数ペア:

[(1, 400161890), (2, 200080945), (5, 80032378), (10, 40016189), (109, 3671210), (218, 1835605), (545, 734242), (1090, 367121)]