28697955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{787}}^1$

素因数の和:836

約数の個数: 64

約数和(自身を含む): 57189888

約数和(自身を除く): 28491933

約数列:

[1, 3, 5, 11, 13, 15, 17, 33, 39, 51, 55, 65, 85, 143, 165, 187, 195, 221, 255, 429, 561, 663, 715, 787, 935, 1105, 2145, 2361, 2431, 2805, 3315, 3935, 7293, 8657, 10231, 11805, 12155, 13379, 25971, 30693, 36465, 40137, 43285, 51155, 66895, 112541, 129855, 147169, 153465, 173927, 200685, 337623, 441507, 521781, 562705, 735845, 869635, 1688115, 1913197, 2207535, 2608905, 5739591, 9565985, 28697955]

約数ペア:

[(1, 28697955), (3, 9565985), (5, 5739591), (11, 2608905), (13, 2207535), (15, 1913197), (17, 1688115), (33, 869635), (39, 735845), (51, 562705), (55, 521781), (65, 441507), (85, 337623), (143, 200685), (165, 173927), (187, 153465), (195, 147169), (221, 129855), (255, 112541), (429, 66895), (561, 51155), (663, 43285), (715, 40137), (787, 36465), (935, 30693), (1105, 25971), (2145, 13379), (2361, 12155), (2431, 11805), (2805, 10231), (3315, 8657), (3935, 7293)]