2017086820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{389399}}^1$

素因数の和:389452

約数の個数: 48

約数和(自身を含む): 4971859200

約数和(自身を除く): 2954772380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 389399, 778798, 1557596, 1946995, 2725793, 3893990, 5451586, 7787980, 10903172, 13628965, 14407763, 27257930, 28815526, 54515860, 57631052, 72038815, 100854341, 144077630, 201708682, 288155260, 403417364, 504271705, 1008543410, 2017086820]

約数ペア:

[(1, 2017086820), (2, 1008543410), (4, 504271705), (5, 403417364), (7, 288155260), (10, 201708682), (14, 144077630), (20, 100854341), (28, 72038815), (35, 57631052), (37, 54515860), (70, 28815526), (74, 27257930), (140, 14407763), (148, 13628965), (185, 10903172), (259, 7787980), (370, 5451586), (518, 3893990), (740, 2725793), (1036, 1946995), (1295, 1557596), (2590, 778798), (5180, 389399)]