2018220125

素因数分解:

$5^3\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 2660080176

約数和(自身を除く): 641860051

約数列:

[1, 5, 25, 31, 53, 125, 155, 265, 317, 775, 961, 1325, 1585, 1643, 3875, 4805, 6625, 7925, 8215, 9827, 16801, 24025, 39625, 41075, 49135, 50933, 84005, 120125, 205375, 245675, 254665, 304637, 420025, 520831, 1228375, 1273325, 1523185, 2100125, 2604155, 6366625, 7615925, 13020775, 16145761, 38079625, 65103875, 80728805, 403644025, 2018220125]

約数ペア:

[(1, 2018220125), (5, 403644025), (25, 80728805), (31, 65103875), (53, 38079625), (125, 16145761), (155, 13020775), (265, 7615925), (317, 6366625), (775, 2604155), (961, 2100125), (1325, 1523185), (1585, 1273325), (1643, 1228375), (3875, 520831), (4805, 420025), (6625, 304637), (7925, 254665), (8215, 245675), (9827, 205375), (16801, 120125), (24025, 84005), (39625, 50933), (41075, 49135)]