128210719

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{463}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 168376320

約数和(自身を除く): 40165601

約数列:

[1, 7, 13, 17, 91, 119, 179, 221, 463, 1253, 1547, 2327, 3043, 3241, 6019, 7871, 16289, 21301, 39559, 42133, 55097, 82877, 102323, 276913, 580139, 716261, 1077401, 1408909, 7541807, 9862363, 18315817, 128210719]

約数ペア:

[(1, 128210719), (7, 18315817), (13, 9862363), (17, 7541807), (91, 1408909), (119, 1077401), (179, 716261), (221, 580139), (463, 276913), (1253, 102323), (1547, 82877), (2327, 55097), (3043, 42133), (3241, 39559), (6019, 21301), (7871, 16289)]