69131320

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 90535880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 131, 158, 167, 262, 316, 334, 395, 524, 632, 655, 668, 790, 835, 1048, 1310, 1336, 1580, 1670, 2620, 3160, 3340, 5240, 6680, 10349, 13193, 20698, 21877, 26386, 41396, 43754, 51745, 52772, 65965, 82792, 87508, 103490, 105544, 109385, 131930, 175016, 206980, 218770, 263860, 413960, 437540, 527720, 875080, 1728283, 3456566, 6913132, 8641415, 13826264, 17282830, 34565660, 69131320]

約数ペア:

[(1, 69131320), (2, 34565660), (4, 17282830), (5, 13826264), (8, 8641415), (10, 6913132), (20, 3456566), (40, 1728283), (79, 875080), (131, 527720), (158, 437540), (167, 413960), (262, 263860), (316, 218770), (334, 206980), (395, 175016), (524, 131930), (632, 109385), (655, 105544), (668, 103490), (790, 87508), (835, 82792), (1048, 65965), (1310, 52772), (1336, 51745), (1580, 43754), (1670, 41396), (2620, 26386), (3160, 21877), (3340, 20698), (5240, 13193), (6680, 10349)]