19444400

素因数分解:

$2^4\times 5^2\times {\mathrm{48611}}^1$

素因数の和:48629

約数の個数: 30

約数和(自身を含む): 46716132

約数和(自身を除く): 27271732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 48611, 97222, 194444, 243055, 388888, 486110, 777776, 972220, 1215275, 1944440, 2430550, 3888880, 4861100, 9722200, 19444400]

約数ペア:

[(1, 19444400), (2, 9722200), (4, 4861100), (5, 3888880), (8, 2430550), (10, 1944440), (16, 1215275), (20, 972220), (25, 777776), (40, 486110), (50, 388888), (80, 243055), (100, 194444), (200, 97222), (400, 48611)]