257311935

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1327}}^1$

素因数の和:1508

約数の個数: 48

約数和(自身を含む): 464056320

約数和(自身を除く): 206744385

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 139, 155, 279, 417, 465, 695, 1251, 1327, 1395, 2085, 3981, 4309, 6255, 6635, 11943, 12927, 19905, 21545, 38781, 41137, 59715, 64635, 123411, 184453, 193905, 205685, 370233, 553359, 617055, 922265, 1660077, 1851165, 2766795, 5718043, 8300385, 17154129, 28590215, 51462387, 85770645, 257311935]

約数ペア:

[(1, 257311935), (3, 85770645), (5, 51462387), (9, 28590215), (15, 17154129), (31, 8300385), (45, 5718043), (93, 2766795), (139, 1851165), (155, 1660077), (279, 922265), (417, 617055), (465, 553359), (695, 370233), (1251, 205685), (1327, 193905), (1395, 184453), (2085, 123411), (3981, 64635), (4309, 59715), (6255, 41137), (6635, 38781), (11943, 21545), (12927, 19905)]