90961280

素因数分解:

$2^7\times 5^1\times {\mathrm{311}}^1\times {\mathrm{457}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 218630880

約数和(自身を除く): 127669600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 311, 320, 457, 622, 640, 914, 1244, 1555, 1828, 2285, 2488, 3110, 3656, 4570, 4976, 6220, 7312, 9140, 9952, 12440, 14624, 18280, 19904, 24880, 29248, 36560, 39808, 49760, 58496, 73120, 99520, 142127, 146240, 199040, 284254, 292480, 568508, 710635, 1137016, 1421270, 2274032, 2842540, 4548064, 5685080, 9096128, 11370160, 18192256, 22740320, 45480640, 90961280]

約数ペア:

[(1, 90961280), (2, 45480640), (4, 22740320), (5, 18192256), (8, 11370160), (10, 9096128), (16, 5685080), (20, 4548064), (32, 2842540), (40, 2274032), (64, 1421270), (80, 1137016), (128, 710635), (160, 568508), (311, 292480), (320, 284254), (457, 199040), (622, 146240), (640, 142127), (914, 99520), (1244, 73120), (1555, 58496), (1828, 49760), (2285, 39808), (2488, 36560), (3110, 29248), (3656, 24880), (4570, 19904), (4976, 18280), (6220, 14624), (7312, 12440), (9140, 9952)]