81853940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13597}}^1$

素因数の和:13656

約数の個数: 48

約数和(自身を含む): 201032832

約数和(自身を除く): 119178892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 13597, 27194, 54388, 67985, 95179, 135970, 190358, 271940, 380716, 475895, 584671, 951790, 1169342, 1903580, 2338684, 2923355, 4092697, 5846710, 8185394, 11693420, 16370788, 20463485, 40926970, 81853940]

約数ペア:

[(1, 81853940), (2, 40926970), (4, 20463485), (5, 16370788), (7, 11693420), (10, 8185394), (14, 5846710), (20, 4092697), (28, 2923355), (35, 2338684), (43, 1903580), (70, 1169342), (86, 951790), (140, 584671), (172, 475895), (215, 380716), (301, 271940), (430, 190358), (602, 135970), (860, 95179), (1204, 67985), (1505, 54388), (3010, 27194), (6020, 13597)]