638510012

素因数分解:

$2^2\times 7^1\times {\mathrm{1181}}^1\times {\mathrm{19309}}^1$

素因数の和:20501

約数の個数: 24

約数和(自身を含む): 1278167520

約数和(自身を除く): 639657508

約数列:

[1, 2, 4, 7, 14, 28, 1181, 2362, 4724, 8267, 16534, 19309, 33068, 38618, 77236, 135163, 270326, 540652, 22803929, 45607858, 91215716, 159627503, 319255006, 638510012]

約数ペア:

[(1, 638510012), (2, 319255006), (4, 159627503), (7, 91215716), (14, 45607858), (28, 22803929), (1181, 540652), (2362, 270326), (4724, 135163), (8267, 77236), (16534, 38618), (19309, 33068)]