7805385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 15724800

約数和(自身を除く): 7919415

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 349, 355, 497, 639, 1047, 1065, 1491, 1745, 2443, 2485, 3141, 3195, 4473, 5235, 7329, 7455, 12215, 15705, 21987, 22365, 24779, 36645, 74337, 109935, 123895, 173453, 223011, 371685, 520359, 867265, 1115055, 1561077, 2601795, 7805385]

約数ペア:

[(1, 7805385), (3, 2601795), (5, 1561077), (7, 1115055), (9, 867265), (15, 520359), (21, 371685), (35, 223011), (45, 173453), (63, 123895), (71, 109935), (105, 74337), (213, 36645), (315, 24779), (349, 22365), (355, 21987), (497, 15705), (639, 12215), (1047, 7455), (1065, 7329), (1491, 5235), (1745, 4473), (2443, 3195), (2485, 3141)]