18793180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 45372096

約数和(自身を除く): 26578916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 241, 482, 557, 964, 1114, 1205, 1687, 2228, 2410, 2785, 3374, 3899, 4820, 5570, 6748, 7798, 8435, 11140, 15596, 16870, 19495, 33740, 38990, 77980, 134237, 268474, 536948, 671185, 939659, 1342370, 1879318, 2684740, 3758636, 4698295, 9396590, 18793180]

約数ペア:

[(1, 18793180), (2, 9396590), (4, 4698295), (5, 3758636), (7, 2684740), (10, 1879318), (14, 1342370), (20, 939659), (28, 671185), (35, 536948), (70, 268474), (140, 134237), (241, 77980), (482, 38990), (557, 33740), (964, 19495), (1114, 16870), (1205, 15596), (1687, 11140), (2228, 8435), (2410, 7798), (2785, 6748), (3374, 5570), (3899, 4820)]