18820304

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{863}}^1$

素因数の和:947

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19748656

約数列:

[1, 2, 4, 8, 16, 29, 47, 58, 94, 116, 188, 232, 376, 464, 752, 863, 1363, 1726, 2726, 3452, 5452, 6904, 10904, 13808, 21808, 25027, 40561, 50054, 81122, 100108, 162244, 200216, 324488, 400432, 648976, 1176269, 2352538, 4705076, 9410152, 18820304]

約数ペア:

[(1, 18820304), (2, 9410152), (4, 4705076), (8, 2352538), (16, 1176269), (29, 648976), (47, 400432), (58, 324488), (94, 200216), (116, 162244), (188, 100108), (232, 81122), (376, 50054), (464, 40561), (752, 25027), (863, 21808), (1363, 13808), (1726, 10904), (2726, 6904), (3452, 5452)]