449140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 999432

約数和(自身を除く): 550292

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1321, 2642, 5284, 6605, 13210, 22457, 26420, 44914, 89828, 112285, 224570, 449140]

約数ペア:

[(1, 449140), (2, 224570), (4, 112285), (5, 89828), (10, 44914), (17, 26420), (20, 22457), (34, 13210), (68, 6605), (85, 5284), (170, 2642), (340, 1321)]