18709760

素因数分解:

$2^8\times 5^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 45916416

約数和(自身を除く): 27206656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 256, 311, 320, 376, 470, 622, 640, 752, 940, 1244, 1280, 1504, 1555, 1880, 2488, 3008, 3110, 3760, 4976, 6016, 6220, 7520, 9952, 12032, 12440, 14617, 15040, 19904, 24880, 29234, 30080, 39808, 49760, 58468, 60160, 73085, 79616, 99520, 116936, 146170, 199040, 233872, 292340, 398080, 467744, 584680, 935488, 1169360, 1870976, 2338720, 3741952, 4677440, 9354880, 18709760]

約数ペア:

[(1, 18709760), (2, 9354880), (4, 4677440), (5, 3741952), (8, 2338720), (10, 1870976), (16, 1169360), (20, 935488), (32, 584680), (40, 467744), (47, 398080), (64, 292340), (80, 233872), (94, 199040), (128, 146170), (160, 116936), (188, 99520), (235, 79616), (256, 73085), (311, 60160), (320, 58468), (376, 49760), (470, 39808), (622, 30080), (640, 29234), (752, 24880), (940, 19904), (1244, 15040), (1280, 14617), (1504, 12440), (1555, 12032), (1880, 9952), (2488, 7520), (3008, 6220), (3110, 6016), (3760, 4976)]