20184400

素因数分解:

$2^4\times 5^2\times {\mathrm{50461}}^1$

素因数の和:50479

約数の個数: 30

約数和(自身を含む): 48493982

約数和(自身を除く): 28309582

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50461, 100922, 201844, 252305, 403688, 504610, 807376, 1009220, 1261525, 2018440, 2523050, 4036880, 5046100, 10092200, 20184400]

約数ペア:

[(1, 20184400), (2, 10092200), (4, 5046100), (5, 4036880), (8, 2523050), (10, 2018440), (16, 1261525), (20, 1009220), (25, 807376), (40, 504610), (50, 403688), (80, 252305), (100, 201844), (200, 100922), (400, 50461)]