18792340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{499}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 26567660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 499, 538, 998, 1076, 1345, 1883, 1996, 2495, 2690, 3493, 3766, 4990, 5380, 6986, 7532, 9415, 9980, 13972, 17465, 18830, 34930, 37660, 69860, 134231, 268462, 536924, 671155, 939617, 1342310, 1879234, 2684620, 3758468, 4698085, 9396170, 18792340]

約数ペア:

[(1, 18792340), (2, 9396170), (4, 4698085), (5, 3758468), (7, 2684620), (10, 1879234), (14, 1342310), (20, 939617), (28, 671155), (35, 536924), (70, 268462), (140, 134231), (269, 69860), (499, 37660), (538, 34930), (998, 18830), (1076, 17465), (1345, 13972), (1883, 9980), (1996, 9415), (2495, 7532), (2690, 6986), (3493, 5380), (3766, 4990)]