257338980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1429661}}^1$

素因数の和:1429676

約数の個数: 36

約数和(自身を含む): 780595452

約数和(自身を除く): 523256472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1429661, 2859322, 4288983, 5718644, 7148305, 8577966, 12866949, 14296610, 17155932, 21444915, 25733898, 28593220, 42889830, 51467796, 64334745, 85779660, 128669490, 257338980]

約数ペア:

[(1, 257338980), (2, 128669490), (3, 85779660), (4, 64334745), (5, 51467796), (6, 42889830), (9, 28593220), (10, 25733898), (12, 21444915), (15, 17155932), (18, 14296610), (20, 12866949), (30, 8577966), (36, 7148305), (45, 5718644), (60, 4288983), (90, 2859322), (180, 1429661)]