205500675

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:565

約数の個数: 72

約数和(自身を含む): 380680000

約数和(自身を除く): 175179325

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 255, 285, 289, 323, 425, 475, 499, 867, 969, 1275, 1425, 1445, 1497, 1615, 2495, 4335, 4845, 5491, 7225, 7485, 8075, 8483, 9481, 12475, 16473, 21675, 24225, 25449, 27455, 28443, 37425, 42415, 47405, 82365, 127245, 137275, 142215, 144211, 161177, 212075, 237025, 411825, 432633, 483531, 636225, 711075, 721055, 805885, 2163165, 2417655, 2740009, 3605275, 4029425, 8220027, 10815825, 12088275, 13700045, 41100135, 68500225, 205500675]

約数ペア:

[(1, 205500675), (3, 68500225), (5, 41100135), (15, 13700045), (17, 12088275), (19, 10815825), (25, 8220027), (51, 4029425), (57, 3605275), (75, 2740009), (85, 2417655), (95, 2163165), (255, 805885), (285, 721055), (289, 711075), (323, 636225), (425, 483531), (475, 432633), (499, 411825), (867, 237025), (969, 212075), (1275, 161177), (1425, 144211), (1445, 142215), (1497, 137275), (1615, 127245), (2495, 82365), (4335, 47405), (4845, 42415), (5491, 37425), (7225, 28443), (7485, 27455), (8075, 25449), (8483, 24225), (9481, 21675), (12475, 16473)]