16446740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 36578304

約数和(自身を除く): 20131564

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 647, 820, 1271, 1294, 2542, 2588, 3235, 5084, 6355, 6470, 12710, 12940, 20057, 25420, 26527, 40114, 53054, 80228, 100285, 106108, 132635, 200570, 265270, 401140, 530540, 822337, 1644674, 3289348, 4111685, 8223370, 16446740]

約数ペア:

[(1, 16446740), (2, 8223370), (4, 4111685), (5, 3289348), (10, 1644674), (20, 822337), (31, 530540), (41, 401140), (62, 265270), (82, 200570), (124, 132635), (155, 106108), (164, 100285), (205, 80228), (310, 53054), (410, 40114), (620, 26527), (647, 25420), (820, 20057), (1271, 12940), (1294, 12710), (2542, 6470), (2588, 6355), (3235, 5084)]