128889280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30983}}^1$

素因数の和:31013

約数の個数: 56

約数和(自身を含む): 330537312

約数和(自身を除く): 201648032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 30983, 61966, 123932, 154915, 247864, 309830, 402779, 495728, 619660, 805558, 991456, 1239320, 1611116, 1982912, 2013895, 2478640, 3222232, 4027790, 4957280, 6444464, 8055580, 9914560, 12888928, 16111160, 25777856, 32222320, 64444640, 128889280]

約数ペア:

[(1, 128889280), (2, 64444640), (4, 32222320), (5, 25777856), (8, 16111160), (10, 12888928), (13, 9914560), (16, 8055580), (20, 6444464), (26, 4957280), (32, 4027790), (40, 3222232), (52, 2478640), (64, 2013895), (65, 1982912), (80, 1611116), (104, 1239320), (130, 991456), (160, 805558), (208, 619660), (260, 495728), (320, 402779), (416, 309830), (520, 247864), (832, 154915), (1040, 123932), (2080, 61966), (4160, 30983)]