18735470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4649}}^1$

素因数の和:4700

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 18762130

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4649, 9298, 23245, 46490, 60437, 120874, 144119, 288238, 302185, 604370, 720595, 1441190, 1873547, 3747094, 9367735, 18735470]

約数ペア:

[(1, 18735470), (2, 9367735), (5, 3747094), (10, 1873547), (13, 1441190), (26, 720595), (31, 604370), (62, 302185), (65, 288238), (130, 144119), (155, 120874), (310, 60437), (403, 46490), (806, 23245), (2015, 9298), (4030, 4649)]