49984621520

素因数分解:

$2^4\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{289129}}^1$

素因数の和:291303

約数の個数: 40

約数和(自身を含む): 116268425160

約数和(自身を除く): 66283803640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2161, 4322, 8644, 10805, 17288, 21610, 34576, 43220, 86440, 172880, 289129, 578258, 1156516, 1445645, 2313032, 2891290, 4626064, 5782580, 11565160, 23130320, 624807769, 1249615538, 2499231076, 3124038845, 4998462152, 6248077690, 9996924304, 12496155380, 24992310760, 49984621520]

約数ペア:

[(1, 49984621520), (2, 24992310760), (4, 12496155380), (5, 9996924304), (8, 6248077690), (10, 4998462152), (16, 3124038845), (20, 2499231076), (40, 1249615538), (80, 624807769), (2161, 23130320), (4322, 11565160), (8644, 5782580), (10805, 4626064), (17288, 2891290), (21610, 2313032), (34576, 1445645), (43220, 1156516), (86440, 578258), (172880, 289129)]