20121520312

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1\times {\mathrm{971}}^1$

素因数の和:1684

約数の個数: 64

約数和(自身を含む): 39366000000

約数和(自身を除く): 19244479688

約数列:

[1, 2, 4, 8, 29, 58, 116, 179, 232, 358, 499, 716, 971, 998, 1432, 1942, 1996, 3884, 3992, 5191, 7768, 10382, 14471, 20764, 28159, 28942, 41528, 56318, 57884, 89321, 112636, 115768, 173809, 178642, 225272, 347618, 357284, 484529, 695236, 714568, 969058, 1390472, 1938116, 2590309, 3876232, 5040461, 5180618, 10080922, 10361236, 14051341, 20161844, 20722472, 28102682, 40323688, 56205364, 86730691, 112410728, 173461382, 346922764, 693845528, 2515190039, 5030380078, 10060760156, 20121520312]

約数ペア:

[(1, 20121520312), (2, 10060760156), (4, 5030380078), (8, 2515190039), (29, 693845528), (58, 346922764), (116, 173461382), (179, 112410728), (232, 86730691), (358, 56205364), (499, 40323688), (716, 28102682), (971, 20722472), (998, 20161844), (1432, 14051341), (1942, 10361236), (1996, 10080922), (3884, 5180618), (3992, 5040461), (5191, 3876232), (7768, 2590309), (10382, 1938116), (14471, 1390472), (20764, 969058), (28159, 714568), (28942, 695236), (41528, 484529), (56318, 357284), (57884, 347618), (89321, 225272), (112636, 178642), (115768, 173809)]