20220788

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 43008000

約数和(自身を除く): 22787212

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 191, 199, 266, 382, 398, 532, 764, 796, 1337, 1393, 2674, 2786, 3629, 3781, 5348, 5572, 7258, 7562, 14516, 15124, 25403, 26467, 38009, 50806, 52934, 76018, 101612, 105868, 152036, 266063, 532126, 722171, 1064252, 1444342, 2888684, 5055197, 10110394, 20220788]

約数ペア:

[(1, 20220788), (2, 10110394), (4, 5055197), (7, 2888684), (14, 1444342), (19, 1064252), (28, 722171), (38, 532126), (76, 266063), (133, 152036), (191, 105868), (199, 101612), (266, 76018), (382, 52934), (398, 50806), (532, 38009), (764, 26467), (796, 25403), (1337, 15124), (1393, 14516), (2674, 7562), (2786, 7258), (3629, 5572), (3781, 5348)]