2155275

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 4126720

約数和(自身を除く): 1971445

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 103, 135, 155, 225, 279, 309, 465, 515, 675, 775, 837, 927, 1395, 1545, 2325, 2575, 2781, 3193, 4185, 4635, 6975, 7725, 9579, 13905, 15965, 20925, 23175, 28737, 47895, 69525, 79825, 86211, 143685, 239475, 431055, 718425, 2155275]

約数ペア:

[(1, 2155275), (3, 718425), (5, 431055), (9, 239475), (15, 143685), (25, 86211), (27, 79825), (31, 69525), (45, 47895), (75, 28737), (93, 23175), (103, 20925), (135, 15965), (155, 13905), (225, 9579), (279, 7725), (309, 6975), (465, 4635), (515, 4185), (675, 3193), (775, 2781), (837, 2575), (927, 2325), (1395, 1545)]