81383260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{2161}}^1$

素因数の和:2446

約数の個数: 48

約数和(自身を含む): 196136640

約数和(自身を除く): 114753380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 538, 1076, 1345, 1883, 2161, 2690, 3766, 4322, 5380, 7532, 8644, 9415, 10805, 15127, 18830, 21610, 30254, 37660, 43220, 60508, 75635, 151270, 302540, 581309, 1162618, 2325236, 2906545, 4069163, 5813090, 8138326, 11626180, 16276652, 20345815, 40691630, 81383260]

約数ペア:

[(1, 81383260), (2, 40691630), (4, 20345815), (5, 16276652), (7, 11626180), (10, 8138326), (14, 5813090), (20, 4069163), (28, 2906545), (35, 2325236), (70, 1162618), (140, 581309), (269, 302540), (538, 151270), (1076, 75635), (1345, 60508), (1883, 43220), (2161, 37660), (2690, 30254), (3766, 21610), (4322, 18830), (5380, 15127), (7532, 10805), (8644, 9415)]