20274268

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 23077796

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 191, 223, 238, 382, 446, 476, 764, 892, 1337, 1561, 2674, 3122, 3247, 3791, 5348, 6244, 6494, 7582, 12988, 15164, 22729, 26537, 42593, 45458, 53074, 85186, 90916, 106148, 170372, 298151, 596302, 724081, 1192604, 1448162, 2896324, 5068567, 10137134, 20274268]

約数ペア:

[(1, 20274268), (2, 10137134), (4, 5068567), (7, 2896324), (14, 1448162), (17, 1192604), (28, 724081), (34, 596302), (68, 298151), (119, 170372), (191, 106148), (223, 90916), (238, 85186), (382, 53074), (446, 45458), (476, 42593), (764, 26537), (892, 22729), (1337, 15164), (1561, 12988), (2674, 7582), (3122, 6494), (3247, 6244), (3791, 5348)]