20776965140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{307079}}^1$

素因数の和:307304

約数の個数: 48

約数和(自身を含む): 46430496000

約数和(自身を除く): 25653530860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1990, 3383, 3980, 6766, 13532, 16915, 33830, 67660, 307079, 614158, 1228316, 1535395, 3070790, 5220343, 6141580, 10440686, 20881372, 26101715, 52203430, 61108721, 104406860, 122217442, 244434884, 305543605, 611087210, 1038848257, 1222174420, 2077696514, 4155393028, 5194241285, 10388482570, 20776965140]

約数ペア:

[(1, 20776965140), (2, 10388482570), (4, 5194241285), (5, 4155393028), (10, 2077696514), (17, 1222174420), (20, 1038848257), (34, 611087210), (68, 305543605), (85, 244434884), (170, 122217442), (199, 104406860), (340, 61108721), (398, 52203430), (796, 26101715), (995, 20881372), (1990, 10440686), (3383, 6141580), (3980, 5220343), (6766, 3070790), (13532, 1535395), (16915, 1228316), (33830, 614158), (67660, 307079)]