248778875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 340797600

約数和(自身を除く): 92018725

約数列:

[1, 5, 19, 25, 31, 95, 109, 125, 155, 475, 545, 589, 775, 961, 2071, 2375, 2725, 2945, 3379, 3875, 4805, 10355, 13625, 14725, 16895, 18259, 24025, 51775, 64201, 73625, 84475, 91295, 104749, 120125, 258875, 321005, 422375, 456475, 523745, 1605025, 1990231, 2282375, 2618725, 8025125, 9951155, 13093625, 49755775, 248778875]

約数ペア:

[(1, 248778875), (5, 49755775), (19, 13093625), (25, 9951155), (31, 8025125), (95, 2618725), (109, 2282375), (125, 1990231), (155, 1605025), (475, 523745), (545, 456475), (589, 422375), (775, 321005), (961, 258875), (2071, 120125), (2375, 104749), (2725, 91295), (2945, 84475), (3379, 73625), (3875, 64201), (4805, 51775), (10355, 24025), (13625, 18259), (14725, 16895)]