639865135

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 992839680

約数和(自身を除く): 352974545

約数列:

[1, 5, 7, 13, 29, 35, 65, 71, 91, 145, 203, 355, 377, 455, 497, 683, 923, 1015, 1885, 2059, 2485, 2639, 3415, 4615, 4781, 6461, 8879, 10295, 13195, 14413, 19807, 23905, 26767, 32305, 44395, 48493, 62153, 72065, 99035, 133835, 138649, 187369, 242465, 257491, 310765, 339451, 630409, 693245, 936845, 1287455, 1406297, 1697255, 1802437, 3152045, 4412863, 7031485, 9012185, 9844079, 18281861, 22064315, 49220395, 91409305, 127973027, 639865135]

約数ペア:

[(1, 639865135), (5, 127973027), (7, 91409305), (13, 49220395), (29, 22064315), (35, 18281861), (65, 9844079), (71, 9012185), (91, 7031485), (145, 4412863), (203, 3152045), (355, 1802437), (377, 1697255), (455, 1406297), (497, 1287455), (683, 936845), (923, 693245), (1015, 630409), (1885, 339451), (2059, 310765), (2485, 257491), (2639, 242465), (3415, 187369), (4615, 138649), (4781, 133835), (6461, 99035), (8879, 72065), (10295, 62153), (13195, 48493), (14413, 44395), (19807, 32305), (23905, 26767)]