31337980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 69128640

約数和(自身を除く): 37790660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 761, 1420, 1522, 2059, 3044, 3805, 4118, 7610, 8236, 10295, 15220, 20590, 22069, 41180, 44138, 54031, 88276, 108062, 110345, 216124, 220690, 270155, 441380, 540310, 1080620, 1566899, 3133798, 6267596, 7834495, 15668990, 31337980]

約数ペア:

[(1, 31337980), (2, 15668990), (4, 7834495), (5, 6267596), (10, 3133798), (20, 1566899), (29, 1080620), (58, 540310), (71, 441380), (116, 270155), (142, 220690), (145, 216124), (284, 110345), (290, 108062), (355, 88276), (580, 54031), (710, 44138), (761, 41180), (1420, 22069), (1522, 20590), (2059, 15220), (3044, 10295), (3805, 8236), (4118, 7610)]