28914535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 11147417

約数列:

[1, 5, 13, 17, 65, 85, 137, 191, 221, 685, 955, 1105, 1781, 2329, 2483, 3247, 8905, 11645, 12415, 16235, 26167, 30277, 42211, 130835, 151385, 211055, 340171, 444839, 1700855, 2224195, 5782907, 28914535]

約数ペア:

[(1, 28914535), (5, 5782907), (13, 2224195), (17, 1700855), (65, 444839), (85, 340171), (137, 211055), (191, 151385), (221, 130835), (685, 42211), (955, 30277), (1105, 26167), (1781, 16235), (2329, 12415), (2483, 11645), (3247, 8905)]