20784210916

素因数分解:

$2^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{439}}^1\times {\mathrm{8761}}^1$

素因数の和:9404

約数の個数: 48

約数和(自身を含む): 41883761920

約数和(自身を除く): 21099551004

約数列:

[1, 2, 4, 7, 14, 28, 193, 386, 439, 772, 878, 1351, 1756, 2702, 3073, 5404, 6146, 8761, 12292, 17522, 35044, 61327, 84727, 122654, 169454, 245308, 338908, 593089, 1186178, 1690873, 2372356, 3381746, 3846079, 6763492, 7692158, 11836111, 15384316, 23672222, 26922553, 47344444, 53845106, 107690212, 742293247, 1484586494, 2969172988, 5196052729, 10392105458, 20784210916]

約数ペア:

[(1, 20784210916), (2, 10392105458), (4, 5196052729), (7, 2969172988), (14, 1484586494), (28, 742293247), (193, 107690212), (386, 53845106), (439, 47344444), (772, 26922553), (878, 23672222), (1351, 15384316), (1756, 11836111), (2702, 7692158), (3073, 6763492), (5404, 3846079), (6146, 3381746), (8761, 2372356), (12292, 1690873), (17522, 1186178), (35044, 593089), (61327, 338908), (84727, 245308), (122654, 169454)]