74740880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21727}}^1$

素因数の和:21783

約数の個数: 40

約数和(自身を含む): 177821952

約数和(自身を除く): 103081072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 21727, 43454, 86908, 108635, 173816, 217270, 347632, 434540, 869080, 934261, 1738160, 1868522, 3737044, 4671305, 7474088, 9342610, 14948176, 18685220, 37370440, 74740880]

約数ペア:

[(1, 74740880), (2, 37370440), (4, 18685220), (5, 14948176), (8, 9342610), (10, 7474088), (16, 4671305), (20, 3737044), (40, 1868522), (43, 1738160), (80, 934261), (86, 869080), (172, 434540), (215, 347632), (344, 217270), (430, 173816), (688, 108635), (860, 86908), (1720, 43454), (3440, 21727)]