18701800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7193}}^1$

素因数の和:7222

約数の個数: 48

約数和(自身を含む): 46832940

約数和(自身を除く): 28131140

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7193, 14386, 28772, 35965, 57544, 71930, 93509, 143860, 179825, 187018, 287720, 359650, 374036, 467545, 719300, 748072, 935090, 1438600, 1870180, 2337725, 3740360, 4675450, 9350900, 18701800]

約数ペア:

[(1, 18701800), (2, 9350900), (4, 4675450), (5, 3740360), (8, 2337725), (10, 1870180), (13, 1438600), (20, 935090), (25, 748072), (26, 719300), (40, 467545), (50, 374036), (52, 359650), (65, 287720), (100, 187018), (104, 179825), (130, 143860), (200, 93509), (260, 71930), (325, 57544), (520, 35965), (650, 28772), (1300, 14386), (2600, 7193)]