19873600

素因数分解:

$2^6\times 5^2\times {\mathrm{12421}}^1$

素因数の和:12443

約数の個数: 42

約数和(自身を含む): 48905414

約数和(自身を除く): 29031814

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12421, 24842, 49684, 62105, 99368, 124210, 198736, 248420, 310525, 397472, 496840, 621050, 794944, 993680, 1242100, 1987360, 2484200, 3974720, 4968400, 9936800, 19873600]

約数ペア:

[(1, 19873600), (2, 9936800), (4, 4968400), (5, 3974720), (8, 2484200), (10, 1987360), (16, 1242100), (20, 993680), (25, 794944), (32, 621050), (40, 496840), (50, 397472), (64, 310525), (80, 248420), (100, 198736), (160, 124210), (200, 99368), (320, 62105), (400, 49684), (800, 24842), (1600, 12421)]