28791.0000000

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1373}}^1$

素因数の和:1407

約数の個数: 72

約数和(自身を含む): 30700656

約数和(自身を除く): 20732676

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1373, 1452, 1815, 2420, 2746, 3630, 4119, 5492, 6865, 7260, 8238, 13730, 15103, 16476, 20595, 27460, 30206, 41190, 45309, 60412, 75515, 82380, 90618, 151030, 166133, 181236, 226545, 302060, 332266, 453090, 498399, 664532, 830665, 906180, 996798, 1661330, 1993596, 2491995, 3322660, 4983990, 9967980]

約数ペア:

[(1, 9967980), (2, 4983990), (3, 3322660), (4, 2491995), (5, 1993596), (6, 1661330), (10, 996798), (11, 906180), (12, 830665), (15, 664532), (20, 498399), (22, 453090), (30, 332266), (33, 302060), (44, 226545), (55, 181236), (60, 166133), (66, 151030), (110, 90618), (121, 82380), (132, 75515), (165, 60412), (220, 45309), (242, 41190), (330, 30206), (363, 27460), (484, 20595), (605, 16476), (660, 15103), (726, 13730), (1210, 8238), (1373, 7260), (1452, 6865), (1815, 5492), (2420, 4119), (2746, 3630)]