138826360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{80713}}^1$

素因数の和:80767

約数の個数: 32

約数和(自身を含む): 319627440

約数和(自身を除く): 180801080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 80713, 161426, 322852, 403565, 645704, 807130, 1614260, 3228520, 3470659, 6941318, 13882636, 17353295, 27765272, 34706590, 69413180, 138826360]

約数ペア:

[(1, 138826360), (2, 69413180), (4, 34706590), (5, 27765272), (8, 17353295), (10, 13882636), (20, 6941318), (40, 3470659), (43, 3228520), (86, 1614260), (172, 807130), (215, 645704), (344, 403565), (430, 322852), (860, 161426), (1720, 80713)]