1888342875

素因数分解:

$3^4\times 5^3\times {\mathrm{421}}^1\times {\mathrm{443}}^1$

素因数の和:891

約数の個数: 80

約数和(自身を含む): 3536758368

約数和(自身を除く): 1648415493

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 421, 443, 675, 1125, 1263, 1329, 2025, 2105, 2215, 3375, 3789, 3987, 6315, 6645, 10125, 10525, 11075, 11367, 11961, 18945, 19935, 31575, 33225, 34101, 35883, 52625, 55375, 56835, 59805, 94725, 99675, 157875, 166125, 170505, 179415, 186503, 284175, 299025, 473625, 498375, 559509, 852525, 897075, 932515, 1420875, 1495125, 1678527, 2797545, 4262625, 4485375, 4662575, 5035581, 8392635, 13987725, 15106743, 23312875, 25177905, 41963175, 69938625, 75533715, 125889525, 209815875, 377668575, 629447625, 1888342875]

約数ペア:

[(1, 1888342875), (3, 629447625), (5, 377668575), (9, 209815875), (15, 125889525), (25, 75533715), (27, 69938625), (45, 41963175), (75, 25177905), (81, 23312875), (125, 15106743), (135, 13987725), (225, 8392635), (375, 5035581), (405, 4662575), (421, 4485375), (443, 4262625), (675, 2797545), (1125, 1678527), (1263, 1495125), (1329, 1420875), (2025, 932515), (2105, 897075), (2215, 852525), (3375, 559509), (3789, 498375), (3987, 473625), (6315, 299025), (6645, 284175), (10125, 186503), (10525, 179415), (11075, 170505), (11367, 166125), (11961, 157875), (18945, 99675), (19935, 94725), (31575, 59805), (33225, 56835), (34101, 55375), (35883, 52625)]