18308420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1051}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 42063168

約数和(自身を除く): 23754748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1051, 1340, 1742, 2102, 3484, 4204, 4355, 5255, 8710, 10510, 13663, 17420, 21020, 27326, 54652, 68315, 70417, 136630, 140834, 273260, 281668, 352085, 704170, 915421, 1408340, 1830842, 3661684, 4577105, 9154210, 18308420]

約数ペア:

[(1, 18308420), (2, 9154210), (4, 4577105), (5, 3661684), (10, 1830842), (13, 1408340), (20, 915421), (26, 704170), (52, 352085), (65, 281668), (67, 273260), (130, 140834), (134, 136630), (260, 70417), (268, 68315), (335, 54652), (670, 27326), (871, 21020), (1051, 17420), (1340, 13663), (1742, 10510), (2102, 8710), (3484, 5255), (4204, 4355)]