221427375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{857}}^1$

素因数の和:941

約数の個数: 64

約数和(自身を含む): 404756352

約数和(自身を除く): 183328977

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 125, 159, 195, 265, 325, 375, 689, 795, 857, 975, 1325, 1625, 2067, 2571, 3445, 3975, 4285, 4875, 6625, 10335, 11141, 12855, 17225, 19875, 21425, 33423, 45421, 51675, 55705, 64275, 86125, 107125, 136263, 167115, 227105, 258375, 278525, 321375, 590473, 681315, 835575, 1135525, 1392625, 1771419, 2952365, 3406575, 4177875, 5677625, 8857095, 14761825, 17032875, 44285475, 73809125, 221427375]

約数ペア:

[(1, 221427375), (3, 73809125), (5, 44285475), (13, 17032875), (15, 14761825), (25, 8857095), (39, 5677625), (53, 4177875), (65, 3406575), (75, 2952365), (125, 1771419), (159, 1392625), (195, 1135525), (265, 835575), (325, 681315), (375, 590473), (689, 321375), (795, 278525), (857, 258375), (975, 227105), (1325, 167115), (1625, 136263), (2067, 107125), (2571, 86125), (3445, 64275), (3975, 55705), (4285, 51675), (4875, 45421), (6625, 33423), (10335, 21425), (11141, 19875), (12855, 17225)]