18912800

素因数分解:

$2^5\times 5^2\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:570

約数の個数: 72

約数和(自身を含む): 47246976

約数和(自身を除く): 28334176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 80, 94, 100, 160, 188, 200, 235, 376, 400, 470, 503, 752, 800, 940, 1006, 1175, 1504, 1880, 2012, 2350, 2515, 3760, 4024, 4700, 5030, 7520, 8048, 9400, 10060, 12575, 16096, 18800, 20120, 23641, 25150, 37600, 40240, 47282, 50300, 80480, 94564, 100600, 118205, 189128, 201200, 236410, 378256, 402400, 472820, 591025, 756512, 945640, 1182050, 1891280, 2364100, 3782560, 4728200, 9456400, 18912800]

約数ペア:

[(1, 18912800), (2, 9456400), (4, 4728200), (5, 3782560), (8, 2364100), (10, 1891280), (16, 1182050), (20, 945640), (25, 756512), (32, 591025), (40, 472820), (47, 402400), (50, 378256), (80, 236410), (94, 201200), (100, 189128), (160, 118205), (188, 100600), (200, 94564), (235, 80480), (376, 50300), (400, 47282), (470, 40240), (503, 37600), (752, 25150), (800, 23641), (940, 20120), (1006, 18800), (1175, 16096), (1504, 12575), (1880, 10060), (2012, 9400), (2350, 8048), (2515, 7520), (3760, 5030), (4024, 4700)]