20005111300

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{778409}}^1$

素因数の和:778680

約数の個数: 36

約数和(自身を含む): 43580062260

約数和(自身を除く): 23574950960

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 1028, 1285, 2570, 5140, 6425, 12850, 25700, 778409, 1556818, 3113636, 3892045, 7784090, 15568180, 19460225, 38920450, 77840900, 200051113, 400102226, 800204452, 1000255565, 2000511130, 4001022260, 5001277825, 10002555650, 20005111300]

約数ペア:

[(1, 20005111300), (2, 10002555650), (4, 5001277825), (5, 4001022260), (10, 2000511130), (20, 1000255565), (25, 800204452), (50, 400102226), (100, 200051113), (257, 77840900), (514, 38920450), (1028, 19460225), (1285, 15568180), (2570, 7784090), (5140, 3892045), (6425, 3113636), (12850, 1556818), (25700, 778409)]