18850611825

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{907}}^1\times {\mathrm{1301}}^1$

素因数の和:2295

約数の個数: 72

約数和(自身を含む): 34303179456

約数和(自身を除く): 15452567631

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 907, 1065, 1301, 1775, 2721, 3195, 3903, 4535, 5325, 6505, 8163, 11709, 13605, 15975, 19515, 22675, 32525, 40815, 58545, 64397, 68025, 92371, 97575, 193191, 204075, 277113, 292725, 321985, 461855, 579573, 831339, 965955, 1180007, 1385565, 1609925, 2309275, 2897865, 3540021, 4156695, 4829775, 5900035, 6927825, 10620063, 14489325, 17700105, 20783475, 29500175, 53100315, 83780497, 88500525, 251341491, 265501575, 418902485, 754024473, 1256707455, 2094512425, 3770122365, 6283537275, 18850611825]

約数ペア:

[(1, 18850611825), (3, 6283537275), (5, 3770122365), (9, 2094512425), (15, 1256707455), (25, 754024473), (45, 418902485), (71, 265501575), (75, 251341491), (213, 88500525), (225, 83780497), (355, 53100315), (639, 29500175), (907, 20783475), (1065, 17700105), (1301, 14489325), (1775, 10620063), (2721, 6927825), (3195, 5900035), (3903, 4829775), (4535, 4156695), (5325, 3540021), (6505, 2897865), (8163, 2309275), (11709, 1609925), (13605, 1385565), (15975, 1180007), (19515, 965955), (22675, 831339), (32525, 579573), (40815, 461855), (58545, 321985), (64397, 292725), (68025, 277113), (92371, 204075), (97575, 193191)]