12991100

素因数分解:

$2^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{797}}^1$

素因数の和:974

約数の個数: 36

約数和(自身を含む): 28399224

約数和(自身を除く): 15408124

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 163, 326, 652, 797, 815, 1594, 1630, 3188, 3260, 3985, 4075, 7970, 8150, 15940, 16300, 19925, 39850, 79700, 129911, 259822, 519644, 649555, 1299110, 2598220, 3247775, 6495550, 12991100]

約数ペア:

[(1, 12991100), (2, 6495550), (4, 3247775), (5, 2598220), (10, 1299110), (20, 649555), (25, 519644), (50, 259822), (100, 129911), (163, 79700), (326, 39850), (652, 19925), (797, 16300), (815, 15940), (1594, 8150), (1630, 7970), (3188, 4075), (3260, 3985)]