28100025

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1846

約数の個数: 36

約数和(自身を含む): 51068160

約数和(自身を除く): 22968135

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1759, 1775, 3195, 5277, 5325, 8795, 15831, 15975, 26385, 43975, 79155, 124889, 131925, 374667, 395775, 624445, 1124001, 1873335, 3122225, 5620005, 9366675, 28100025]

約数ペア:

[(1, 28100025), (3, 9366675), (5, 5620005), (9, 3122225), (15, 1873335), (25, 1124001), (45, 624445), (71, 395775), (75, 374667), (213, 131925), (225, 124889), (355, 79155), (639, 43975), (1065, 26385), (1759, 15975), (1775, 15831), (3195, 8795), (5277, 5325)]