38812900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{89}}^2$

素因数の和:206

約数の個数: 81

約数和(自身を含む): 99088059

約数和(自身を除く): 60275159

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 89, 98, 100, 140, 175, 178, 196, 245, 350, 356, 445, 490, 623, 700, 890, 980, 1225, 1246, 1780, 2225, 2450, 2492, 3115, 4361, 4450, 4900, 6230, 7921, 8722, 8900, 12460, 15575, 15842, 17444, 21805, 31150, 31684, 39605, 43610, 55447, 62300, 79210, 87220, 109025, 110894, 158420, 198025, 218050, 221788, 277235, 388129, 396050, 436100, 554470, 776258, 792100, 1108940, 1386175, 1552516, 1940645, 2772350, 3881290, 5544700, 7762580, 9703225, 19406450, 38812900]

約数ペア:

[(1, 38812900), (2, 19406450), (4, 9703225), (5, 7762580), (7, 5544700), (10, 3881290), (14, 2772350), (20, 1940645), (25, 1552516), (28, 1386175), (35, 1108940), (49, 792100), (50, 776258), (70, 554470), (89, 436100), (98, 396050), (100, 388129), (140, 277235), (175, 221788), (178, 218050), (196, 198025), (245, 158420), (350, 110894), (356, 109025), (445, 87220), (490, 79210), (623, 62300), (700, 55447), (890, 43610), (980, 39605), (1225, 31684), (1246, 31150), (1780, 21805), (2225, 17444), (2450, 15842), (2492, 15575), (3115, 12460), (4361, 8900), (4450, 8722), (4900, 7921)]