78861680

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14713}}^1$

素因数の和:14793

約数の個数: 40

約数和(自身を含む): 186102672

約数和(自身を除く): 107240992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 14713, 29426, 58852, 73565, 117704, 147130, 235408, 294260, 588520, 985771, 1177040, 1971542, 3943084, 4928855, 7886168, 9857710, 15772336, 19715420, 39430840, 78861680]

約数ペア:

[(1, 78861680), (2, 39430840), (4, 19715420), (5, 15772336), (8, 9857710), (10, 7886168), (16, 4928855), (20, 3943084), (40, 1971542), (67, 1177040), (80, 985771), (134, 588520), (268, 294260), (335, 235408), (536, 147130), (670, 117704), (1072, 73565), (1340, 58852), (2680, 29426), (5360, 14713)]