40691890

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{40289}}^1$

素因数の和:40397

約数の個数: 16

約数和(自身を含む): 73972440

約数和(自身を除く): 33280550

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 40289, 80578, 201445, 402890, 4069189, 8138378, 20345945, 40691890]

約数ペア:

[(1, 40691890), (2, 20345945), (5, 8138378), (10, 4069189), (101, 402890), (202, 201445), (505, 80578), (1010, 40289)]