27776775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 51107840

約数和(自身を除く): 23331065

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 195, 325, 403, 465, 775, 919, 975, 1209, 2015, 2325, 2757, 4595, 6045, 10075, 11947, 13785, 22975, 28489, 30225, 35841, 59735, 68925, 85467, 142445, 179205, 298675, 370357, 427335, 712225, 896025, 1111071, 1851785, 2136675, 5555355, 9258925, 27776775]

約数ペア:

[(1, 27776775), (3, 9258925), (5, 5555355), (13, 2136675), (15, 1851785), (25, 1111071), (31, 896025), (39, 712225), (65, 427335), (75, 370357), (93, 298675), (155, 179205), (195, 142445), (325, 85467), (403, 68925), (465, 59735), (775, 35841), (919, 30225), (975, 28489), (1209, 22975), (2015, 13785), (2325, 11947), (2757, 10075), (4595, 6045)]