16618180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 37978416

約数和(自身を除く): 21360236

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1321, 2516, 2642, 3145, 5284, 6290, 6605, 12580, 13210, 22457, 26420, 44914, 48877, 89828, 97754, 112285, 195508, 224570, 244385, 449140, 488770, 830909, 977540, 1661818, 3323636, 4154545, 8309090, 16618180]

約数ペア:

[(1, 16618180), (2, 8309090), (4, 4154545), (5, 3323636), (10, 1661818), (17, 977540), (20, 830909), (34, 488770), (37, 449140), (68, 244385), (74, 224570), (85, 195508), (148, 112285), (170, 97754), (185, 89828), (340, 48877), (370, 44914), (629, 26420), (740, 22457), (1258, 13210), (1321, 12580), (2516, 6605), (2642, 6290), (3145, 5284)]