128424375

素因数分解:

$3^2\times 5^4\times {\mathrm{17}}^2\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 90

約数和(自身を含む): 249357680

約数和(自身を除く): 120933305

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 79, 85, 125, 153, 225, 237, 255, 289, 375, 395, 425, 625, 711, 765, 867, 1125, 1185, 1275, 1343, 1445, 1875, 1975, 2125, 2601, 3555, 3825, 4029, 4335, 5625, 5925, 6375, 6715, 7225, 9875, 10625, 12087, 13005, 17775, 19125, 20145, 21675, 22831, 29625, 31875, 33575, 36125, 49375, 60435, 65025, 68493, 88875, 95625, 100725, 108375, 114155, 148125, 167875, 180625, 205479, 302175, 325125, 342465, 444375, 503625, 541875, 570775, 839375, 1027395, 1510875, 1625625, 1712325, 2518125, 2853875, 5136975, 7554375, 8561625, 14269375, 25684875, 42808125, 128424375]

約数ペア:

[(1, 128424375), (3, 42808125), (5, 25684875), (9, 14269375), (15, 8561625), (17, 7554375), (25, 5136975), (45, 2853875), (51, 2518125), (75, 1712325), (79, 1625625), (85, 1510875), (125, 1027395), (153, 839375), (225, 570775), (237, 541875), (255, 503625), (289, 444375), (375, 342465), (395, 325125), (425, 302175), (625, 205479), (711, 180625), (765, 167875), (867, 148125), (1125, 114155), (1185, 108375), (1275, 100725), (1343, 95625), (1445, 88875), (1875, 68493), (1975, 65025), (2125, 60435), (2601, 49375), (3555, 36125), (3825, 33575), (4029, 31875), (4335, 29625), (5625, 22831), (5925, 21675), (6375, 20145), (6715, 19125), (7225, 17775), (9875, 13005), (10625, 12087)]