18260840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35117}}^1$

素因数の和:35141

約数の個数: 32

約数和(自身を含む): 44248680

約数和(自身を除く): 25987840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35117, 70234, 140468, 175585, 280936, 351170, 456521, 702340, 913042, 1404680, 1826084, 2282605, 3652168, 4565210, 9130420, 18260840]

約数ペア:

[(1, 18260840), (2, 9130420), (4, 4565210), (5, 3652168), (8, 2282605), (10, 1826084), (13, 1404680), (20, 913042), (26, 702340), (40, 456521), (52, 351170), (65, 280936), (104, 175585), (130, 140468), (260, 70234), (520, 35117)]