78848240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22921}}^1$

素因数の和:22977

約数の個数: 40

約数和(自身を含む): 187593648

約数和(自身を除く): 108745408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 22921, 45842, 91684, 114605, 183368, 229210, 366736, 458420, 916840, 985603, 1833680, 1971206, 3942412, 4928015, 7884824, 9856030, 15769648, 19712060, 39424120, 78848240]

約数ペア:

[(1, 78848240), (2, 39424120), (4, 19712060), (5, 15769648), (8, 9856030), (10, 7884824), (16, 4928015), (20, 3942412), (40, 1971206), (43, 1833680), (80, 985603), (86, 916840), (172, 458420), (215, 366736), (344, 229210), (430, 183368), (688, 114605), (860, 91684), (1720, 45842), (3440, 22921)]