1681457855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 2575411200

約数和(自身を除く): 893953345

約数列:

[1, 5, 7, 11, 35, 55, 71, 77, 137, 355, 385, 449, 497, 685, 781, 959, 1507, 2245, 2485, 3143, 3905, 4795, 4939, 5467, 7535, 9727, 10549, 15715, 24695, 27335, 31879, 34573, 48635, 52745, 61513, 68089, 106997, 159395, 172865, 223153, 307565, 340445, 350669, 430591, 534985, 676643, 748979, 1115765, 1753345, 2152955, 2454683, 3383215, 3744895, 4367423, 4736501, 12273415, 21837115, 23682505, 30571961, 48041653, 152859805, 240208265, 336291571, 1681457855]

約数ペア:

[(1, 1681457855), (5, 336291571), (7, 240208265), (11, 152859805), (35, 48041653), (55, 30571961), (71, 23682505), (77, 21837115), (137, 12273415), (355, 4736501), (385, 4367423), (449, 3744895), (497, 3383215), (685, 2454683), (781, 2152955), (959, 1753345), (1507, 1115765), (2245, 748979), (2485, 676643), (3143, 534985), (3905, 430591), (4795, 350669), (4939, 340445), (5467, 307565), (7535, 223153), (9727, 172865), (10549, 159395), (15715, 106997), (24695, 68089), (27335, 61513), (31879, 52745), (34573, 48635)]