138869560

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{51817}}^1$

素因数の和:51895

約数の個数: 32

約数和(自身を含む): 317126160

約数和(自身を除く): 178256600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 51817, 103634, 207268, 259085, 414536, 518170, 1036340, 2072680, 3471739, 6943478, 13886956, 17358695, 27773912, 34717390, 69434780, 138869560]

約数ペア:

[(1, 138869560), (2, 69434780), (4, 34717390), (5, 27773912), (8, 17358695), (10, 13886956), (20, 6943478), (40, 3471739), (67, 2072680), (134, 1036340), (268, 518170), (335, 414536), (536, 259085), (670, 207268), (1340, 103634), (2680, 51817)]