1810640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1741}}^1$

素因数の和:1767

約数の個数: 40

約数和(自身を含む): 4536168

約数和(自身を除く): 2725528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1741, 3482, 6964, 8705, 13928, 17410, 22633, 27856, 34820, 45266, 69640, 90532, 113165, 139280, 181064, 226330, 362128, 452660, 905320, 1810640]

約数ペア:

[(1, 1810640), (2, 905320), (4, 452660), (5, 362128), (8, 226330), (10, 181064), (13, 139280), (16, 113165), (20, 90532), (26, 69640), (40, 45266), (52, 34820), (65, 27856), (80, 22633), (104, 17410), (130, 13928), (208, 8705), (260, 6964), (520, 3482), (1040, 1741)]