640637906

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{3331}}^1$

素因数の和:3506

約数の個数: 32

約数和(自身を含む): 1039264128

約数和(自身を除く): 398626222

約数列:

[1, 2, 23, 37, 46, 74, 113, 226, 851, 1702, 2599, 3331, 4181, 5198, 6662, 8362, 76613, 96163, 123247, 153226, 192326, 246494, 376403, 752806, 2834681, 5669362, 8657269, 13926911, 17314538, 27853822, 320318953, 640637906]

約数ペア:

[(1, 640637906), (2, 320318953), (23, 27853822), (37, 17314538), (46, 13926911), (74, 8657269), (113, 5669362), (226, 2834681), (851, 752806), (1702, 376403), (2599, 246494), (3331, 192326), (4181, 153226), (5198, 123247), (6662, 96163), (8362, 76613)]