20218997020

素因数分解:

$2^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{491}}^1\times {\mathrm{4447}}^1$

素因数の和:5410

約数の個数: 48

約数和(自身を含む): 42647851008

約数和(自身を除く): 22428853988

約数列:

[1, 2, 4, 5, 10, 20, 463, 491, 926, 982, 1852, 1964, 2315, 2455, 4447, 4630, 4910, 8894, 9260, 9820, 17788, 22235, 44470, 88940, 227333, 454666, 909332, 1136665, 2058961, 2183477, 2273330, 4117922, 4366954, 4546660, 8235844, 8733908, 10294805, 10917385, 20589610, 21834770, 41179220, 43669540, 1010949851, 2021899702, 4043799404, 5054749255, 10109498510, 20218997020]

約数ペア:

[(1, 20218997020), (2, 10109498510), (4, 5054749255), (5, 4043799404), (10, 2021899702), (20, 1010949851), (463, 43669540), (491, 41179220), (926, 21834770), (982, 20589610), (1852, 10917385), (1964, 10294805), (2315, 8733908), (2455, 8235844), (4447, 4546660), (4630, 4366954), (4910, 4117922), (8894, 2273330), (9260, 2183477), (9820, 2058961), (17788, 1136665), (22235, 909332), (44470, 454666), (88940, 227333)]