2021098125

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:592

約数の個数: 80

約数和(自身を含む): 3596598720

約数和(自身を除く): 1575500595

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 163, 255, 375, 389, 425, 489, 625, 815, 1167, 1275, 1875, 1945, 2125, 2445, 2771, 4075, 5835, 6375, 6613, 8313, 9725, 10625, 12225, 13855, 19839, 20375, 29175, 31875, 33065, 41565, 48625, 61125, 63407, 69275, 99195, 101875, 145875, 165325, 190221, 207825, 243125, 305625, 317035, 346375, 495975, 729375, 826625, 951105, 1039125, 1077919, 1585175, 1731875, 2479875, 3233757, 4133125, 4755525, 5195625, 5389595, 7925875, 12399375, 16168785, 23777625, 26947975, 39629375, 80843925, 118888125, 134739875, 404219625, 673699375, 2021098125]

約数ペア:

[(1, 2021098125), (3, 673699375), (5, 404219625), (15, 134739875), (17, 118888125), (25, 80843925), (51, 39629375), (75, 26947975), (85, 23777625), (125, 16168785), (163, 12399375), (255, 7925875), (375, 5389595), (389, 5195625), (425, 4755525), (489, 4133125), (625, 3233757), (815, 2479875), (1167, 1731875), (1275, 1585175), (1875, 1077919), (1945, 1039125), (2125, 951105), (2445, 826625), (2771, 729375), (4075, 495975), (5835, 346375), (6375, 317035), (6613, 305625), (8313, 243125), (9725, 207825), (10625, 190221), (12225, 165325), (13855, 145875), (19839, 101875), (20375, 99195), (29175, 69275), (31875, 63407), (33065, 61125), (41565, 48625)]