27221680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17909}}^1$

素因数の和:17941

約数の個数: 40

約数和(自身を含む): 66625200

約数和(自身を除く): 39403520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 17909, 35818, 71636, 89545, 143272, 179090, 286544, 340271, 358180, 680542, 716360, 1361084, 1432720, 1701355, 2722168, 3402710, 5444336, 6805420, 13610840, 27221680]

約数ペア:

[(1, 27221680), (2, 13610840), (4, 6805420), (5, 5444336), (8, 3402710), (10, 2722168), (16, 1701355), (19, 1432720), (20, 1361084), (38, 716360), (40, 680542), (76, 358180), (80, 340271), (95, 286544), (152, 179090), (190, 143272), (304, 89545), (380, 71636), (760, 35818), (1520, 17909)]