2770180180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1\times {\mathrm{3881}}^1$

素因数の和:4380

約数の個数: 48

約数和(自身を含む): 5898931920

約数和(自身を除く): 3128751740

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 401, 445, 802, 890, 1604, 1780, 2005, 3881, 4010, 7762, 8020, 15524, 19405, 35689, 38810, 71378, 77620, 142756, 178445, 345409, 356890, 690818, 713780, 1381636, 1556281, 1727045, 3112562, 3454090, 6225124, 6908180, 7781405, 15562810, 31125620, 138509009, 277018018, 554036036, 692545045, 1385090090, 2770180180]

約数ペア:

[(1, 2770180180), (2, 1385090090), (4, 692545045), (5, 554036036), (10, 277018018), (20, 138509009), (89, 31125620), (178, 15562810), (356, 7781405), (401, 6908180), (445, 6225124), (802, 3454090), (890, 3112562), (1604, 1727045), (1780, 1556281), (2005, 1381636), (3881, 713780), (4010, 690818), (7762, 356890), (8020, 345409), (15524, 178445), (19405, 142756), (35689, 77620), (38810, 71378)]