405412990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{5081}}^1$

素因数の和:5268

約数の個数: 32

約数和(自身を含む): 746444160

約数和(自身を除く): 341031170

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 395, 505, 790, 1010, 5081, 7979, 10162, 15958, 25405, 39895, 50810, 79790, 401399, 513181, 802798, 1026362, 2006995, 2565905, 4013990, 5131810, 40541299, 81082598, 202706495, 405412990]

約数ペア:

[(1, 405412990), (2, 202706495), (5, 81082598), (10, 40541299), (79, 5131810), (101, 4013990), (158, 2565905), (202, 2006995), (395, 1026362), (505, 802798), (790, 513181), (1010, 401399), (5081, 79790), (7979, 50810), (10162, 39895), (15958, 25405)]