28547025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 56663040

約数和(自身を除く): 28116015

約数列:

[1, 3, 5, 13, 15, 19, 23, 25, 39, 57, 65, 67, 69, 75, 95, 115, 195, 201, 247, 285, 299, 325, 335, 345, 437, 475, 575, 741, 871, 897, 975, 1005, 1235, 1273, 1311, 1425, 1495, 1541, 1675, 1725, 2185, 2613, 3705, 3819, 4355, 4485, 4623, 5025, 5681, 6175, 6365, 6555, 7475, 7705, 10925, 13065, 16549, 17043, 18525, 19095, 20033, 21775, 22425, 23115, 28405, 29279, 31825, 32775, 38525, 49647, 60099, 65325, 82745, 85215, 87837, 95475, 100165, 115575, 142025, 146395, 248235, 300495, 380627, 413725, 426075, 439185, 500825, 731975, 1141881, 1241175, 1502475, 1903135, 2195925, 5709405, 9515675, 28547025]

約数ペア:

[(1, 28547025), (3, 9515675), (5, 5709405), (13, 2195925), (15, 1903135), (19, 1502475), (23, 1241175), (25, 1141881), (39, 731975), (57, 500825), (65, 439185), (67, 426075), (69, 413725), (75, 380627), (95, 300495), (115, 248235), (195, 146395), (201, 142025), (247, 115575), (285, 100165), (299, 95475), (325, 87837), (335, 85215), (345, 82745), (437, 65325), (475, 60099), (575, 49647), (741, 38525), (871, 32775), (897, 31825), (975, 29279), (1005, 28405), (1235, 23115), (1273, 22425), (1311, 21775), (1425, 20033), (1495, 19095), (1541, 18525), (1675, 17043), (1725, 16549), (2185, 13065), (2613, 10925), (3705, 7705), (3819, 7475), (4355, 6555), (4485, 6365), (4623, 6175), (5025, 5681)]