71559760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21817}}^1$

素因数の和:21871

約数の個数: 40

約数和(自身を含む): 170442216

約数和(自身を除く): 98882456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 21817, 43634, 87268, 109085, 174536, 218170, 349072, 436340, 872680, 894497, 1745360, 1788994, 3577988, 4472485, 7155976, 8944970, 14311952, 17889940, 35779880, 71559760]

約数ペア:

[(1, 71559760), (2, 35779880), (4, 17889940), (5, 14311952), (8, 8944970), (10, 7155976), (16, 4472485), (20, 3577988), (40, 1788994), (41, 1745360), (80, 894497), (82, 872680), (164, 436340), (205, 349072), (328, 218170), (410, 174536), (656, 109085), (820, 87268), (1640, 43634), (3280, 21817)]