8021690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 15120000

約数和(自身を除く): 7098310

約数列:

[1, 2, 5, 10, 29, 58, 139, 145, 199, 278, 290, 398, 695, 995, 1390, 1990, 4031, 5771, 8062, 11542, 20155, 27661, 28855, 40310, 55322, 57710, 138305, 276610, 802169, 1604338, 4010845, 8021690]

約数ペア:

[(1, 8021690), (2, 4010845), (5, 1604338), (10, 802169), (29, 276610), (58, 138305), (139, 57710), (145, 55322), (199, 40310), (278, 28855), (290, 27661), (398, 20155), (695, 11542), (995, 8062), (1390, 5771), (1990, 4031)]