306495

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{139}}^1$

素因数の和:164

約数の個数: 36

約数和(自身を含む): 622440

約数和(自身を除く): 315945

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 139, 147, 245, 315, 417, 441, 695, 735, 973, 1251, 2085, 2205, 2919, 4865, 6255, 6811, 8757, 14595, 20433, 34055, 43785, 61299, 102165, 306495]

約数ペア:

[(1, 306495), (3, 102165), (5, 61299), (7, 43785), (9, 34055), (15, 20433), (21, 14595), (35, 8757), (45, 6811), (49, 6255), (63, 4865), (105, 2919), (139, 2205), (147, 2085), (245, 1251), (315, 973), (417, 735), (441, 695)]