90428500

素因数分解:

$2^2\times 5^3\times {\mathrm{83}}^1\times {\mathrm{2179}}^1$

素因数の和:2281

約数の個数: 48

約数和(自身を含む): 199967040

約数和(自身を除く): 109538540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 125, 166, 250, 332, 415, 500, 830, 1660, 2075, 2179, 4150, 4358, 8300, 8716, 10375, 10895, 20750, 21790, 41500, 43580, 54475, 108950, 180857, 217900, 272375, 361714, 544750, 723428, 904285, 1089500, 1808570, 3617140, 4521425, 9042850, 18085700, 22607125, 45214250, 90428500]

約数ペア:

[(1, 90428500), (2, 45214250), (4, 22607125), (5, 18085700), (10, 9042850), (20, 4521425), (25, 3617140), (50, 1808570), (83, 1089500), (100, 904285), (125, 723428), (166, 544750), (250, 361714), (332, 272375), (415, 217900), (500, 180857), (830, 108950), (1660, 54475), (2075, 43580), (2179, 41500), (4150, 21790), (4358, 20750), (8300, 10895), (8716, 10375)]