28251220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 62375040

約数和(自身を除く): 34123820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 670, 727, 1340, 1454, 1943, 2908, 3635, 3886, 7270, 7772, 9715, 14540, 19430, 21083, 38860, 42166, 48709, 84332, 97418, 105415, 194836, 210830, 243545, 421660, 487090, 974180, 1412561, 2825122, 5650244, 7062805, 14125610, 28251220]

約数ペア:

[(1, 28251220), (2, 14125610), (4, 7062805), (5, 5650244), (10, 2825122), (20, 1412561), (29, 974180), (58, 487090), (67, 421660), (116, 243545), (134, 210830), (145, 194836), (268, 105415), (290, 97418), (335, 84332), (580, 48709), (670, 42166), (727, 38860), (1340, 21083), (1454, 19430), (1943, 14540), (2908, 9715), (3635, 7772), (3886, 7270)]