128210920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{86629}}^1$

素因数の和:86677

約数の個数: 32

約数和(自身を含む): 296274600

約数和(自身を除く): 168063680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 86629, 173258, 346516, 433145, 693032, 866290, 1732580, 3205273, 3465160, 6410546, 12821092, 16026365, 25642184, 32052730, 64105460, 128210920]

約数ペア:

[(1, 128210920), (2, 64105460), (4, 32052730), (5, 25642184), (8, 16026365), (10, 12821092), (20, 6410546), (37, 3465160), (40, 3205273), (74, 1732580), (148, 866290), (185, 693032), (296, 433145), (370, 346516), (740, 173258), (1480, 86629)]