888945280

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{20731}}^1$

素因数の和:20817

約数の個数: 64

約数和(自身を含む): 2156957280

約数和(自身を除く): 1268012000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 536, 640, 670, 1072, 1340, 2144, 2680, 4288, 5360, 8576, 10720, 20731, 21440, 41462, 42880, 82924, 103655, 165848, 207310, 331696, 414620, 663392, 829240, 1326784, 1388977, 1658480, 2653568, 2777954, 3316960, 5555908, 6633920, 6944885, 11111816, 13267840, 13889770, 22223632, 27779540, 44447264, 55559080, 88894528, 111118160, 177789056, 222236320, 444472640, 888945280]

約数ペア:

[(1, 888945280), (2, 444472640), (4, 222236320), (5, 177789056), (8, 111118160), (10, 88894528), (16, 55559080), (20, 44447264), (32, 27779540), (40, 22223632), (64, 13889770), (67, 13267840), (80, 11111816), (128, 6944885), (134, 6633920), (160, 5555908), (268, 3316960), (320, 2777954), (335, 2653568), (536, 1658480), (640, 1388977), (670, 1326784), (1072, 829240), (1340, 663392), (2144, 414620), (2680, 331696), (4288, 207310), (5360, 165848), (8576, 103655), (10720, 82924), (20731, 42880), (21440, 41462)]