1818781328

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1249163}}^1$

素因数の和:1249191

約数の個数: 40

約数和(自身を含む): 4337097408

約数和(自身を除く): 2518316080

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 1249163, 2498326, 4996652, 8744141, 9993304, 16239119, 17488282, 19986608, 32478238, 34976564, 64956476, 69953128, 113673833, 129912952, 139906256, 227347666, 259825904, 454695332, 909390664, 1818781328]

約数ペア:

[(1, 1818781328), (2, 909390664), (4, 454695332), (7, 259825904), (8, 227347666), (13, 139906256), (14, 129912952), (16, 113673833), (26, 69953128), (28, 64956476), (52, 34976564), (56, 32478238), (91, 19986608), (104, 17488282), (112, 16239119), (182, 9993304), (208, 8744141), (364, 4996652), (728, 2498326), (1456, 1249163)]