18990176

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 39395664

約数和(自身を除く): 20405488

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 74, 86, 148, 172, 296, 344, 373, 592, 688, 746, 1184, 1376, 1492, 1591, 2984, 3182, 5968, 6364, 11936, 12728, 13801, 16039, 25456, 27602, 32078, 50912, 55204, 64156, 110408, 128312, 220816, 256624, 441632, 513248, 593443, 1186886, 2373772, 4747544, 9495088, 18990176]

約数ペア:

[(1, 18990176), (2, 9495088), (4, 4747544), (8, 2373772), (16, 1186886), (32, 593443), (37, 513248), (43, 441632), (74, 256624), (86, 220816), (148, 128312), (172, 110408), (296, 64156), (344, 55204), (373, 50912), (592, 32078), (688, 27602), (746, 25456), (1184, 16039), (1376, 13801), (1492, 12728), (1591, 11936), (2984, 6364), (3182, 5968)]