20984709248

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{809}}^1\times {\mathrm{5477}}^1$

素因数の和:6337

約数の個数: 64

約数和(自身を含む): 42996274200

約数和(自身を除く): 22011564952

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 296, 592, 809, 1184, 1618, 2368, 3236, 4736, 5477, 6472, 10954, 12944, 21908, 25888, 29933, 43816, 51776, 59866, 87632, 103552, 119732, 175264, 202649, 239464, 350528, 405298, 478928, 701056, 810596, 957856, 1621192, 1915712, 3242384, 3831424, 4430893, 6484768, 8861786, 12969536, 17723572, 25939072, 35447144, 70894288, 141788576, 163943041, 283577152, 327886082, 567154304, 655772164, 1311544328, 2623088656, 5246177312, 10492354624, 20984709248]

約数ペア:

[(1, 20984709248), (2, 10492354624), (4, 5246177312), (8, 2623088656), (16, 1311544328), (32, 655772164), (37, 567154304), (64, 327886082), (74, 283577152), (128, 163943041), (148, 141788576), (296, 70894288), (592, 35447144), (809, 25939072), (1184, 17723572), (1618, 12969536), (2368, 8861786), (3236, 6484768), (4736, 4430893), (5477, 3831424), (6472, 3242384), (10954, 1915712), (12944, 1621192), (21908, 957856), (25888, 810596), (29933, 701056), (43816, 478928), (51776, 405298), (59866, 350528), (87632, 239464), (103552, 202649), (119732, 175264)]