28118925

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2659}}^1$

素因数の和:2722

約数の個数: 36

約数和(自身を含む): 51455040

約数和(自身を除く): 23336115

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 2115, 2659, 3525, 7977, 10575, 13295, 23931, 39885, 66475, 119655, 124973, 199425, 374919, 598275, 624865, 1124757, 1874595, 3124325, 5623785, 9372975, 28118925]

約数ペア:

[(1, 28118925), (3, 9372975), (5, 5623785), (9, 3124325), (15, 1874595), (25, 1124757), (45, 624865), (47, 598275), (75, 374919), (141, 199425), (225, 124973), (235, 119655), (423, 66475), (705, 39885), (1175, 23931), (2115, 13295), (2659, 10575), (3525, 7977)]