20297056

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:623

約数の個数: 48

約数和(自身を含む): 43563744

約数和(自身を除く): 23266688

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 194, 208, 388, 416, 503, 776, 1006, 1261, 1552, 2012, 2522, 3104, 4024, 5044, 6539, 8048, 10088, 13078, 16096, 20176, 26156, 40352, 48791, 52312, 97582, 104624, 195164, 209248, 390328, 634283, 780656, 1268566, 1561312, 2537132, 5074264, 10148528, 20297056]

約数ペア:

[(1, 20297056), (2, 10148528), (4, 5074264), (8, 2537132), (13, 1561312), (16, 1268566), (26, 780656), (32, 634283), (52, 390328), (97, 209248), (104, 195164), (194, 104624), (208, 97582), (388, 52312), (416, 48791), (503, 40352), (776, 26156), (1006, 20176), (1261, 16096), (1552, 13078), (2012, 10088), (2522, 8048), (3104, 6539), (4024, 5044)]