2148940

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{773}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 4551120

約数和(自身を除く): 2402180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 773, 1390, 1546, 2780, 3092, 3865, 7730, 15460, 107447, 214894, 429788, 537235, 1074470, 2148940]

約数ペア:

[(1, 2148940), (2, 1074470), (4, 537235), (5, 429788), (10, 214894), (20, 107447), (139, 15460), (278, 7730), (556, 3865), (695, 3092), (773, 2780), (1390, 1546)]