78981200

素因数分解:

$2^4\times 5^2\times {\mathrm{197453}}^1$

素因数の和:197471

約数の個数: 30

約数和(自身を含む): 189753294

約数和(自身を除く): 110772094

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 197453, 394906, 789812, 987265, 1579624, 1974530, 3159248, 3949060, 4936325, 7898120, 9872650, 15796240, 19745300, 39490600, 78981200]

約数ペア:

[(1, 78981200), (2, 39490600), (4, 19745300), (5, 15796240), (8, 9872650), (10, 7898120), (16, 4936325), (20, 3949060), (25, 3159248), (40, 1974530), (50, 1579624), (80, 987265), (100, 789812), (200, 394906), (400, 197453)]