28545280

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 70824600

約数和(自身を除く): 42279320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 580, 640, 769, 928, 1160, 1280, 1538, 1856, 2320, 3076, 3712, 3845, 4640, 6152, 7424, 7690, 9280, 12304, 15380, 18560, 22301, 24608, 30760, 37120, 44602, 49216, 61520, 89204, 98432, 111505, 123040, 178408, 196864, 223010, 246080, 356816, 446020, 492160, 713632, 892040, 984320, 1427264, 1784080, 2854528, 3568160, 5709056, 7136320, 14272640, 28545280]

約数ペア:

[(1, 28545280), (2, 14272640), (4, 7136320), (5, 5709056), (8, 3568160), (10, 2854528), (16, 1784080), (20, 1427264), (29, 984320), (32, 892040), (40, 713632), (58, 492160), (64, 446020), (80, 356816), (116, 246080), (128, 223010), (145, 196864), (160, 178408), (232, 123040), (256, 111505), (290, 98432), (320, 89204), (464, 61520), (580, 49216), (640, 44602), (769, 37120), (928, 30760), (1160, 24608), (1280, 22301), (1538, 18560), (1856, 15380), (2320, 12304), (3076, 9280), (3712, 7690), (3845, 7424), (4640, 6152)]