42478420

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12277}}^1$

素因数の和:12459

約数の個数: 24

約数和(自身を含む): 89727624

約数和(自身を除く): 47249204

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 12277, 24554, 49108, 61385, 122770, 245540, 2123921, 4247842, 8495684, 10619605, 21239210, 42478420]

約数ペア:

[(1, 42478420), (2, 21239210), (4, 10619605), (5, 8495684), (10, 4247842), (20, 2123921), (173, 245540), (346, 122770), (692, 61385), (865, 49108), (1730, 24554), (3460, 12277)]