217417875

素因数分解:

$3^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 377395200

約数和(自身を除く): 159977325

約数列:

[1, 3, 5, 15, 25, 41, 75, 79, 123, 125, 179, 205, 237, 375, 395, 537, 615, 895, 1025, 1185, 1975, 2685, 3075, 3239, 4475, 5125, 5925, 7339, 9717, 9875, 13425, 14141, 15375, 16195, 22017, 22375, 29625, 36695, 42423, 48585, 67125, 70705, 80975, 110085, 183475, 212115, 242925, 353525, 404875, 550425, 579781, 917375, 1060575, 1214625, 1739343, 1767625, 2752125, 2898905, 5302875, 8696715, 14494525, 43483575, 72472625, 217417875]

約数ペア:

[(1, 217417875), (3, 72472625), (5, 43483575), (15, 14494525), (25, 8696715), (41, 5302875), (75, 2898905), (79, 2752125), (123, 1767625), (125, 1739343), (179, 1214625), (205, 1060575), (237, 917375), (375, 579781), (395, 550425), (537, 404875), (615, 353525), (895, 242925), (1025, 212115), (1185, 183475), (1975, 110085), (2685, 80975), (3075, 70705), (3239, 67125), (4475, 48585), (5125, 42423), (5925, 36695), (7339, 29625), (9717, 22375), (9875, 22017), (13425, 16195), (14141, 15375)]