81306010

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1206

約数の個数: 32

約数和(自身を含む): 149817600

約数和(自身を除く): 68511590

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 395, 505, 790, 1010, 1019, 2038, 5095, 7979, 10190, 15958, 39895, 79790, 80501, 102919, 161002, 205838, 402505, 514595, 805010, 1029190, 8130601, 16261202, 40653005, 81306010]

約数ペア:

[(1, 81306010), (2, 40653005), (5, 16261202), (10, 8130601), (79, 1029190), (101, 805010), (158, 514595), (202, 402505), (395, 205838), (505, 161002), (790, 102919), (1010, 80501), (1019, 79790), (2038, 39895), (5095, 15958), (7979, 10190)]