12457305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 25069824

約数和(自身を除く): 12612519

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 557, 639, 1065, 1491, 1671, 2485, 2785, 3195, 3899, 4473, 5013, 7455, 8355, 11697, 19495, 22365, 25065, 35091, 39547, 58485, 118641, 175455, 197735, 276829, 355923, 593205, 830487, 1384145, 1779615, 2491461, 4152435, 12457305]

約数ペア:

[(1, 12457305), (3, 4152435), (5, 2491461), (7, 1779615), (9, 1384145), (15, 830487), (21, 593205), (35, 355923), (45, 276829), (63, 197735), (71, 175455), (105, 118641), (213, 58485), (315, 39547), (355, 35091), (497, 25065), (557, 22365), (639, 19495), (1065, 11697), (1491, 8355), (1671, 7455), (2485, 5013), (2785, 4473), (3195, 3899)]