72781240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{259933}}^1$

素因数の和:259951

約数の個数: 32

約数和(自身を含む): 187152480

約数和(自身を除く): 114371240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 259933, 519866, 1039732, 1299665, 1819531, 2079464, 2599330, 3639062, 5198660, 7278124, 9097655, 10397320, 14556248, 18195310, 36390620, 72781240]

約数ペア:

[(1, 72781240), (2, 36390620), (4, 18195310), (5, 14556248), (7, 10397320), (8, 9097655), (10, 7278124), (14, 5198660), (20, 3639062), (28, 2599330), (35, 2079464), (40, 1819531), (56, 1299665), (70, 1039732), (140, 519866), (280, 259933)]