660228170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1997}}^1\times {\mathrm{4723}}^1$

素因数の和:6734

約数の個数: 32

約数和(自身を含む): 1359151488

約数和(自身を除く): 698923318

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1997, 3994, 4723, 9446, 9985, 13979, 19970, 23615, 27958, 33061, 47230, 66122, 69895, 139790, 165305, 330610, 9431831, 18863662, 47159155, 66022817, 94318310, 132045634, 330114085, 660228170]

約数ペア:

[(1, 660228170), (2, 330114085), (5, 132045634), (7, 94318310), (10, 66022817), (14, 47159155), (35, 18863662), (70, 9431831), (1997, 330610), (3994, 165305), (4723, 139790), (9446, 69895), (9985, 66122), (13979, 47230), (19970, 33061), (23615, 27958)]