2018156725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{1031}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 2848567680

約数和(自身を除く): 830410955

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 317, 325, 475, 1031, 1235, 1585, 4121, 5155, 6023, 6175, 7925, 13403, 19589, 20605, 25775, 30115, 67015, 78299, 97945, 103025, 150575, 254657, 326827, 335075, 391495, 489725, 1273285, 1634135, 1957475, 4248751, 6209713, 6366425, 8170675, 21243755, 31048565, 80726269, 106218775, 155242825, 403631345, 2018156725]

約数ペア:

[(1, 2018156725), (5, 403631345), (13, 155242825), (19, 106218775), (25, 80726269), (65, 31048565), (95, 21243755), (247, 8170675), (317, 6366425), (325, 6209713), (475, 4248751), (1031, 1957475), (1235, 1634135), (1585, 1273285), (4121, 489725), (5155, 391495), (6023, 335075), (6175, 326827), (7925, 254657), (13403, 150575), (19589, 103025), (20605, 97945), (25775, 78299), (30115, 67015)]