15970400

素因数分解:

$2^5\times 5^2\times {\mathrm{19963}}^1$

素因数の和:19983

約数の個数: 36

約数和(自身を含む): 38989692

約数和(自身を除く): 23019292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 19963, 39926, 79852, 99815, 159704, 199630, 319408, 399260, 499075, 638816, 798520, 998150, 1597040, 1996300, 3194080, 3992600, 7985200, 15970400]

約数ペア:

[(1, 15970400), (2, 7985200), (4, 3992600), (5, 3194080), (8, 1996300), (10, 1597040), (16, 998150), (20, 798520), (25, 638816), (32, 499075), (40, 399260), (50, 319408), (80, 199630), (100, 159704), (160, 99815), (200, 79852), (400, 39926), (800, 19963)]