990805600

素因数分解:

$2^5\times 5^2\times {\mathrm{173}}^1\times {\mathrm{7159}}^1$

素因数の和:7352

約数の個数: 72

約数和(自身を含む): 2433125520

約数和(自身を除く): 1442319920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 173, 200, 346, 400, 692, 800, 865, 1384, 1730, 2768, 3460, 4325, 5536, 6920, 7159, 8650, 13840, 14318, 17300, 27680, 28636, 34600, 35795, 57272, 69200, 71590, 114544, 138400, 143180, 178975, 229088, 286360, 357950, 572720, 715900, 1145440, 1238507, 1431800, 2477014, 2863600, 4954028, 5727200, 6192535, 9908056, 12385070, 19816112, 24770140, 30962675, 39632224, 49540280, 61925350, 99080560, 123850700, 198161120, 247701400, 495402800, 990805600]

約数ペア:

[(1, 990805600), (2, 495402800), (4, 247701400), (5, 198161120), (8, 123850700), (10, 99080560), (16, 61925350), (20, 49540280), (25, 39632224), (32, 30962675), (40, 24770140), (50, 19816112), (80, 12385070), (100, 9908056), (160, 6192535), (173, 5727200), (200, 4954028), (346, 2863600), (400, 2477014), (692, 1431800), (800, 1238507), (865, 1145440), (1384, 715900), (1730, 572720), (2768, 357950), (3460, 286360), (4325, 229088), (5536, 178975), (6920, 143180), (7159, 138400), (8650, 114544), (13840, 71590), (14318, 69200), (17300, 57272), (27680, 35795), (28636, 34600)]