28727865

素因数分解:

$3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:903

約数の個数: 40

約数和(自身を含む): 52141320

約数和(自身を除く): 23413455

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 89, 135, 267, 405, 445, 797, 801, 1335, 2391, 2403, 3985, 4005, 7173, 7209, 11955, 12015, 21519, 35865, 36045, 64557, 70933, 107595, 212799, 322785, 354665, 638397, 1063995, 1915191, 3191985, 5745573, 9575955, 28727865]

約数ペア:

[(1, 28727865), (3, 9575955), (5, 5745573), (9, 3191985), (15, 1915191), (27, 1063995), (45, 638397), (81, 354665), (89, 322785), (135, 212799), (267, 107595), (405, 70933), (445, 64557), (797, 36045), (801, 35865), (1335, 21519), (2391, 12015), (2403, 11955), (3985, 7209), (4005, 7173)]