20081240

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 26920360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 67, 118, 127, 134, 236, 254, 268, 295, 335, 472, 508, 536, 590, 635, 670, 1016, 1180, 1270, 1340, 2360, 2540, 2680, 3953, 5080, 7493, 7906, 8509, 14986, 15812, 17018, 19765, 29972, 31624, 34036, 37465, 39530, 42545, 59944, 68072, 74930, 79060, 85090, 149860, 158120, 170180, 299720, 340360, 502031, 1004062, 2008124, 2510155, 4016248, 5020310, 10040620, 20081240]

約数ペア:

[(1, 20081240), (2, 10040620), (4, 5020310), (5, 4016248), (8, 2510155), (10, 2008124), (20, 1004062), (40, 502031), (59, 340360), (67, 299720), (118, 170180), (127, 158120), (134, 149860), (236, 85090), (254, 79060), (268, 74930), (295, 68072), (335, 59944), (472, 42545), (508, 39530), (536, 37465), (590, 34036), (635, 31624), (670, 29972), (1016, 19765), (1180, 17018), (1270, 15812), (1340, 14986), (2360, 8509), (2540, 7906), (2680, 7493), (3953, 5080)]