20867060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 24613900

約数列:

[1, 2, 4, 5, 10, 20, 47, 79, 94, 158, 188, 235, 281, 316, 395, 470, 562, 790, 940, 1124, 1405, 1580, 2810, 3713, 5620, 7426, 13207, 14852, 18565, 22199, 26414, 37130, 44398, 52828, 66035, 74260, 88796, 110995, 132070, 221990, 264140, 443980, 1043353, 2086706, 4173412, 5216765, 10433530, 20867060]

約数ペア:

[(1, 20867060), (2, 10433530), (4, 5216765), (5, 4173412), (10, 2086706), (20, 1043353), (47, 443980), (79, 264140), (94, 221990), (158, 132070), (188, 110995), (235, 88796), (281, 74260), (316, 66035), (395, 52828), (470, 44398), (562, 37130), (790, 26414), (940, 22199), (1124, 18565), (1405, 14852), (1580, 13207), (2810, 7426), (3713, 5620)]