20380484

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 40134528

約数和(自身を除く): 19754044

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 83, 92, 157, 166, 314, 332, 391, 628, 782, 1411, 1564, 1909, 2669, 2822, 3611, 3818, 5338, 5644, 7222, 7636, 10676, 13031, 14444, 26062, 32453, 52124, 61387, 64906, 122774, 129812, 221527, 245548, 299713, 443054, 599426, 886108, 1198852, 5095121, 10190242, 20380484]

約数ペア:

[(1, 20380484), (2, 10190242), (4, 5095121), (17, 1198852), (23, 886108), (34, 599426), (46, 443054), (68, 299713), (83, 245548), (92, 221527), (157, 129812), (166, 122774), (314, 64906), (332, 61387), (391, 52124), (628, 32453), (782, 26062), (1411, 14444), (1564, 13031), (1909, 10676), (2669, 7636), (2822, 7222), (3611, 5644), (3818, 5338)]