84986420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{69661}}^1$

素因数の和:69731

約数の個数: 24

約数和(自身を含む): 181399848

約数和(自身を除く): 96413428

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 69661, 139322, 278644, 348305, 696610, 1393220, 4249321, 8498642, 16997284, 21246605, 42493210, 84986420]

約数ペア:

[(1, 84986420), (2, 42493210), (4, 21246605), (5, 16997284), (10, 8498642), (20, 4249321), (61, 1393220), (122, 696610), (244, 348305), (305, 278644), (610, 139322), (1220, 69661)]