20284875

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 42020160

約数和(自身を除く): 21735285

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 73, 75, 95, 117, 125, 171, 195, 219, 225, 247, 285, 325, 365, 375, 475, 585, 657, 741, 855, 949, 975, 1095, 1125, 1235, 1387, 1425, 1625, 1825, 2223, 2375, 2847, 2925, 3285, 3705, 4161, 4275, 4745, 4875, 5475, 6175, 6935, 7125, 8541, 9125, 11115, 12483, 14235, 14625, 16425, 18031, 18525, 20805, 21375, 23725, 27375, 30875, 34675, 42705, 54093, 55575, 62415, 71175, 82125, 90155, 92625, 104025, 118625, 162279, 173375, 213525, 270465, 277875, 312075, 355875, 450775, 520125, 811395, 1067625, 1352325, 1560375, 2253875, 4056975, 6761625, 20284875]

約数ペア:

[(1, 20284875), (3, 6761625), (5, 4056975), (9, 2253875), (13, 1560375), (15, 1352325), (19, 1067625), (25, 811395), (39, 520125), (45, 450775), (57, 355875), (65, 312075), (73, 277875), (75, 270465), (95, 213525), (117, 173375), (125, 162279), (171, 118625), (195, 104025), (219, 92625), (225, 90155), (247, 82125), (285, 71175), (325, 62415), (365, 55575), (375, 54093), (475, 42705), (585, 34675), (657, 30875), (741, 27375), (855, 23725), (949, 21375), (975, 20805), (1095, 18525), (1125, 18031), (1235, 16425), (1387, 14625), (1425, 14235), (1625, 12483), (1825, 11115), (2223, 9125), (2375, 8541), (2847, 7125), (2925, 6935), (3285, 6175), (3705, 5475), (4161, 4875), (4275, 4745)]