1021189790

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1011079}}^1$

素因数の和:1011187

約数の個数: 16

約数和(自身を含む): 1856342880

約数和(自身を除く): 835153090

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 1011079, 2022158, 5055395, 10110790, 102118979, 204237958, 510594895, 1021189790]

約数ペア:

[(1, 1021189790), (2, 510594895), (5, 204237958), (10, 102118979), (101, 10110790), (202, 5055395), (505, 2022158), (1010, 1011079)]