28982900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{7069}}^1$

素因数の和:7124

約数の個数: 36

約数和(自身を含む): 64435980

約数和(自身を除く): 35453080

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 7069, 14138, 28276, 35345, 70690, 141380, 176725, 289829, 353450, 579658, 706900, 1159316, 1449145, 2898290, 5796580, 7245725, 14491450, 28982900]

約数ペア:

[(1, 28982900), (2, 14491450), (4, 7245725), (5, 5796580), (10, 2898290), (20, 1449145), (25, 1159316), (41, 706900), (50, 579658), (82, 353450), (100, 289829), (164, 176725), (205, 141380), (410, 70690), (820, 35345), (1025, 28276), (2050, 14138), (4100, 7069)]