405440260

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{200713}}^1$

素因数の和:200823

約数の個数: 24

約数和(自身を含む): 859858776

約数和(自身を除く): 454418516

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 200713, 401426, 802852, 1003565, 2007130, 4014260, 20272013, 40544026, 81088052, 101360065, 202720130, 405440260]

約数ペア:

[(1, 405440260), (2, 202720130), (4, 101360065), (5, 81088052), (10, 40544026), (20, 20272013), (101, 4014260), (202, 2007130), (404, 1003565), (505, 802852), (1010, 401426), (2020, 200713)]