28742840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102653}}^1$

素因数の和:102671

約数の個数: 32

約数和(自身を含む): 73910880

約数和(自身を除く): 45168040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102653, 205306, 410612, 513265, 718571, 821224, 1026530, 1437142, 2053060, 2874284, 3592855, 4106120, 5748568, 7185710, 14371420, 28742840]

約数ペア:

[(1, 28742840), (2, 14371420), (4, 7185710), (5, 5748568), (7, 4106120), (8, 3592855), (10, 2874284), (14, 2053060), (20, 1437142), (28, 1026530), (35, 821224), (40, 718571), (56, 513265), (70, 410612), (140, 205306), (280, 102653)]