64390610

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1186

約数の個数: 32

約数和(自身を含む): 118972800

約数和(自身を除く): 54582190

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 445, 710, 890, 1019, 2038, 5095, 6319, 10190, 12638, 31595, 63190, 72349, 90691, 144698, 181382, 361745, 453455, 723490, 906910, 6439061, 12878122, 32195305, 64390610]

約数ペア:

[(1, 64390610), (2, 32195305), (5, 12878122), (10, 6439061), (71, 906910), (89, 723490), (142, 453455), (178, 361745), (355, 181382), (445, 144698), (710, 90691), (890, 72349), (1019, 63190), (2038, 31595), (5095, 12638), (6319, 10190)]