86851240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{991}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 224271360

約数和(自身を除く): 137420120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313, 626, 991, 1252, 1565, 1982, 2191, 2504, 3130, 3964, 4382, 4955, 6260, 6937, 7928, 8764, 9910, 10955, 12520, 13874, 17528, 19820, 21910, 27748, 34685, 39640, 43820, 55496, 69370, 87640, 138740, 277480, 310183, 620366, 1240732, 1550915, 2171281, 2481464, 3101830, 4342562, 6203660, 8685124, 10856405, 12407320, 17370248, 21712810, 43425620, 86851240]

約数ペア:

[(1, 86851240), (2, 43425620), (4, 21712810), (5, 17370248), (7, 12407320), (8, 10856405), (10, 8685124), (14, 6203660), (20, 4342562), (28, 3101830), (35, 2481464), (40, 2171281), (56, 1550915), (70, 1240732), (140, 620366), (280, 310183), (313, 277480), (626, 138740), (991, 87640), (1252, 69370), (1565, 55496), (1982, 43820), (2191, 39640), (2504, 34685), (3130, 27748), (3964, 21910), (4382, 19820), (4955, 17528), (6260, 13874), (6937, 12520), (7928, 10955), (8764, 9910)]