28147460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1319}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 65197440

約数和(自身を除く): 37049980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1319, 1940, 2134, 2638, 4268, 5276, 5335, 6595, 10670, 13190, 14509, 21340, 26380, 29018, 58036, 72545, 127943, 145090, 255886, 290180, 511772, 639715, 1279430, 1407373, 2558860, 2814746, 5629492, 7036865, 14073730, 28147460]

約数ペア:

[(1, 28147460), (2, 14073730), (4, 7036865), (5, 5629492), (10, 2814746), (11, 2558860), (20, 1407373), (22, 1279430), (44, 639715), (55, 511772), (97, 290180), (110, 255886), (194, 145090), (220, 127943), (388, 72545), (485, 58036), (970, 29018), (1067, 26380), (1319, 21340), (1940, 14509), (2134, 13190), (2638, 10670), (4268, 6595), (5276, 5335)]