131781760

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18719}}^1$

素因数の和:18749

約数の個数: 64

約数和(自身を含む): 343699200

約数和(自身を除く): 211917440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 18719, 37438, 74876, 93595, 149752, 187190, 205909, 299504, 374380, 411818, 599008, 748760, 823636, 1029545, 1198016, 1497520, 1647272, 2059090, 2396032, 2995040, 3294544, 4118180, 5990080, 6589088, 8236360, 11980160, 13178176, 16472720, 26356352, 32945440, 65890880, 131781760]

約数ペア:

[(1, 131781760), (2, 65890880), (4, 32945440), (5, 26356352), (8, 16472720), (10, 13178176), (11, 11980160), (16, 8236360), (20, 6589088), (22, 5990080), (32, 4118180), (40, 3294544), (44, 2995040), (55, 2396032), (64, 2059090), (80, 1647272), (88, 1497520), (110, 1198016), (128, 1029545), (160, 823636), (176, 748760), (220, 599008), (320, 411818), (352, 374380), (440, 299504), (640, 205909), (704, 187190), (880, 149752), (1408, 93595), (1760, 74876), (3520, 37438), (7040, 18719)]