489258778850

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1\times {\mathrm{2593}}^1$

素因数の和:3192

約数の個数: 96

約数和(自身を含む): 931435362000

約数和(自身を除く): 442176583150

約数列:

[1, 2, 5, 10, 25, 50, 89, 109, 178, 218, 389, 445, 545, 778, 890, 1090, 1945, 2225, 2593, 2725, 3890, 4450, 5186, 5450, 9701, 9725, 12965, 19402, 19450, 25930, 34621, 42401, 48505, 64825, 69242, 84802, 97010, 129650, 173105, 212005, 230777, 242525, 282637, 346210, 424010, 461554, 485050, 565274, 865525, 1008677, 1060025, 1153885, 1413185, 1731050, 2017354, 2120050, 2307770, 2826370, 3773689, 5043385, 5769425, 7065925, 7547378, 10086770, 11538850, 14131850, 18868445, 25154693, 25216925, 37736890, 50309386, 50433850, 89772253, 94342225, 109945793, 125773465, 179544506, 188684450, 219891586, 251546930, 448861265, 549728965, 628867325, 897722530, 1099457930, 1257734650, 2244306325, 2748644825, 4488612650, 5497289650, 9785175577, 19570351154, 48925877885, 97851755770, 244629389425, 489258778850]

約数ペア:

[(1, 489258778850), (2, 244629389425), (5, 97851755770), (10, 48925877885), (25, 19570351154), (50, 9785175577), (89, 5497289650), (109, 4488612650), (178, 2748644825), (218, 2244306325), (389, 1257734650), (445, 1099457930), (545, 897722530), (778, 628867325), (890, 549728965), (1090, 448861265), (1945, 251546930), (2225, 219891586), (2593, 188684450), (2725, 179544506), (3890, 125773465), (4450, 109945793), (5186, 94342225), (5450, 89772253), (9701, 50433850), (9725, 50309386), (12965, 37736890), (19402, 25216925), (19450, 25154693), (25930, 18868445), (34621, 14131850), (42401, 11538850), (48505, 10086770), (64825, 7547378), (69242, 7065925), (84802, 5769425), (97010, 5043385), (129650, 3773689), (173105, 2826370), (212005, 2307770), (230777, 2120050), (242525, 2017354), (282637, 1731050), (346210, 1413185), (424010, 1153885), (461554, 1060025), (485050, 1008677), (565274, 865525)]