312778820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{154841}}^1$

素因数の和:154951

約数の個数: 24

約数和(自身を含む): 663343128

約数和(自身を除く): 350564308

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 154841, 309682, 619364, 774205, 1548410, 3096820, 15638941, 31277882, 62555764, 78194705, 156389410, 312778820]

約数ペア:

[(1, 312778820), (2, 156389410), (4, 78194705), (5, 62555764), (10, 31277882), (20, 15638941), (101, 3096820), (202, 1548410), (404, 774205), (505, 619364), (1010, 309682), (2020, 154841)]