21786400

素因数分解:

$2^5\times 5^2\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:374

約数の個数: 72

約数和(自身を含む): 53879364

約数和(自身を除く): 32092964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 113, 160, 200, 226, 241, 400, 452, 482, 565, 800, 904, 964, 1130, 1205, 1808, 1928, 2260, 2410, 2825, 3616, 3856, 4520, 4820, 5650, 6025, 7712, 9040, 9640, 11300, 12050, 18080, 19280, 22600, 24100, 27233, 38560, 45200, 48200, 54466, 90400, 96400, 108932, 136165, 192800, 217864, 272330, 435728, 544660, 680825, 871456, 1089320, 1361650, 2178640, 2723300, 4357280, 5446600, 10893200, 21786400]

約数ペア:

[(1, 21786400), (2, 10893200), (4, 5446600), (5, 4357280), (8, 2723300), (10, 2178640), (16, 1361650), (20, 1089320), (25, 871456), (32, 680825), (40, 544660), (50, 435728), (80, 272330), (100, 217864), (113, 192800), (160, 136165), (200, 108932), (226, 96400), (241, 90400), (400, 54466), (452, 48200), (482, 45200), (565, 38560), (800, 27233), (904, 24100), (964, 22600), (1130, 19280), (1205, 18080), (1808, 12050), (1928, 11300), (2260, 9640), (2410, 9040), (2825, 7712), (3616, 6025), (3856, 5650), (4520, 4820)]