80717940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8461}}^1$

素因数の和:8529

約数の個数: 72

約数和(自身を含む): 249493608

約数和(自身を除く): 168775668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 8461, 9540, 16922, 25383, 33844, 42305, 50766, 76149, 84610, 101532, 126915, 152298, 169220, 253830, 304596, 380745, 448433, 507660, 761490, 896866, 1345299, 1522980, 1793732, 2242165, 2690598, 4035897, 4484330, 5381196, 6726495, 8071794, 8968660, 13452990, 16143588, 20179485, 26905980, 40358970, 80717940]

約数ペア:

[(1, 80717940), (2, 40358970), (3, 26905980), (4, 20179485), (5, 16143588), (6, 13452990), (9, 8968660), (10, 8071794), (12, 6726495), (15, 5381196), (18, 4484330), (20, 4035897), (30, 2690598), (36, 2242165), (45, 1793732), (53, 1522980), (60, 1345299), (90, 896866), (106, 761490), (159, 507660), (180, 448433), (212, 380745), (265, 304596), (318, 253830), (477, 169220), (530, 152298), (636, 126915), (795, 101532), (954, 84610), (1060, 76149), (1590, 50766), (1908, 42305), (2385, 33844), (3180, 25383), (4770, 16922), (8461, 9540)]