82721020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1321}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 181230336

約数和(自身を除く): 98509316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 155, 202, 310, 404, 505, 620, 1010, 1321, 2020, 2642, 3131, 5284, 6262, 6605, 12524, 13210, 15655, 26420, 31310, 40951, 62620, 81902, 133421, 163804, 204755, 266842, 409510, 533684, 667105, 819020, 1334210, 2668420, 4136051, 8272102, 16544204, 20680255, 41360510, 82721020]

約数ペア:

[(1, 82721020), (2, 41360510), (4, 20680255), (5, 16544204), (10, 8272102), (20, 4136051), (31, 2668420), (62, 1334210), (101, 819020), (124, 667105), (155, 533684), (202, 409510), (310, 266842), (404, 204755), (505, 163804), (620, 133421), (1010, 81902), (1321, 62620), (2020, 40951), (2642, 31310), (3131, 26420), (5284, 15655), (6262, 13210), (6605, 12524)]