78741680

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3659}}^1$

素因数の和:3941

約数の個数: 40

約数和(自身を含む): 183805200

約数和(自身を除く): 105063520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 1076, 1345, 2152, 2690, 3659, 4304, 5380, 7318, 10760, 14636, 18295, 21520, 29272, 36590, 58544, 73180, 146360, 292720, 984271, 1968542, 3937084, 4921355, 7874168, 9842710, 15748336, 19685420, 39370840, 78741680]

約数ペア:

[(1, 78741680), (2, 39370840), (4, 19685420), (5, 15748336), (8, 9842710), (10, 7874168), (16, 4921355), (20, 3937084), (40, 1968542), (80, 984271), (269, 292720), (538, 146360), (1076, 73180), (1345, 58544), (2152, 36590), (2690, 29272), (3659, 21520), (4304, 18295), (5380, 14636), (7318, 10760)]