2905804930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{20161}}^1$

素因数の和:20275

約数の個数: 64

約数和(自身を含む): 6271188480

約数和(自身を除く): 3365383550

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 71, 142, 145, 203, 290, 355, 406, 497, 710, 994, 1015, 2030, 2059, 2485, 4118, 4970, 10295, 14413, 20161, 20590, 28826, 40322, 72065, 100805, 141127, 144130, 201610, 282254, 584669, 705635, 1169338, 1411270, 1431431, 2862862, 2923345, 4092683, 5846690, 7157155, 8185366, 10020017, 14314310, 20040034, 20463415, 40926830, 41511499, 50100085, 83022998, 100200170, 207557495, 290580493, 415114990, 581160986, 1452902465, 2905804930]

約数ペア:

[(1, 2905804930), (2, 1452902465), (5, 581160986), (7, 415114990), (10, 290580493), (14, 207557495), (29, 100200170), (35, 83022998), (58, 50100085), (70, 41511499), (71, 40926830), (142, 20463415), (145, 20040034), (203, 14314310), (290, 10020017), (355, 8185366), (406, 7157155), (497, 5846690), (710, 4092683), (994, 2923345), (1015, 2862862), (2030, 1431431), (2059, 1411270), (2485, 1169338), (4118, 705635), (4970, 584669), (10295, 282254), (14413, 201610), (20161, 144130), (20590, 141127), (28826, 100805), (40322, 72065)]