81651390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2803}}^1$

素因数の和:3784

約数の個数: 32

約数和(自身を含む): 196235136

約数和(自身を除く): 114583746

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 971, 1942, 2803, 2913, 4855, 5606, 5826, 8409, 9710, 14015, 14565, 16818, 28030, 29130, 42045, 84090, 2721713, 5443426, 8165139, 13608565, 16330278, 27217130, 40825695, 81651390]

約数ペア:

[(1, 81651390), (2, 40825695), (3, 27217130), (5, 16330278), (6, 13608565), (10, 8165139), (15, 5443426), (30, 2721713), (971, 84090), (1942, 42045), (2803, 29130), (2913, 28030), (4855, 16818), (5606, 14565), (5826, 14015), (8409, 9710)]