39351880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 91808640

約数和(自身を除く): 52456760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 137, 167, 172, 215, 274, 334, 344, 430, 548, 668, 685, 835, 860, 1096, 1336, 1370, 1670, 1720, 2740, 3340, 5480, 5891, 6680, 7181, 11782, 14362, 22879, 23564, 28724, 29455, 35905, 45758, 47128, 57448, 58910, 71810, 91516, 114395, 117820, 143620, 183032, 228790, 235640, 287240, 457580, 915160, 983797, 1967594, 3935188, 4918985, 7870376, 9837970, 19675940, 39351880]

約数ペア:

[(1, 39351880), (2, 19675940), (4, 9837970), (5, 7870376), (8, 4918985), (10, 3935188), (20, 1967594), (40, 983797), (43, 915160), (86, 457580), (137, 287240), (167, 235640), (172, 228790), (215, 183032), (274, 143620), (334, 117820), (344, 114395), (430, 91516), (548, 71810), (668, 58910), (685, 57448), (835, 47128), (860, 45758), (1096, 35905), (1336, 29455), (1370, 28724), (1670, 23564), (1720, 22879), (2740, 14362), (3340, 11782), (5480, 7181), (5891, 6680)]