78821480

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{29411}}^1$

素因数の和:29489

約数の個数: 32

約数和(自身を含む): 180001440

約数和(自身を除く): 101179960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 29411, 58822, 117644, 147055, 235288, 294110, 588220, 1176440, 1970537, 3941074, 7882148, 9852685, 15764296, 19705370, 39410740, 78821480]

約数ペア:

[(1, 78821480), (2, 39410740), (4, 19705370), (5, 15764296), (8, 9852685), (10, 7882148), (20, 3941074), (40, 1970537), (67, 1176440), (134, 588220), (268, 294110), (335, 235288), (536, 147055), (670, 117644), (1340, 58822), (2680, 29411)]