1566972020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{599}}^1\times {\mathrm{941}}^1$

素因数の和:1688

約数の個数: 48

約数和(自身を含む): 3323376000

約数和(自身を除く): 1756403980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 599, 695, 941, 1198, 1390, 1882, 2396, 2780, 2995, 3764, 4705, 5990, 9410, 11980, 18820, 83261, 130799, 166522, 261598, 333044, 416305, 523196, 563659, 653995, 832610, 1127318, 1307990, 1665220, 2254636, 2615980, 2818295, 5636590, 11273180, 78348601, 156697202, 313394404, 391743005, 783486010, 1566972020]

約数ペア:

[(1, 1566972020), (2, 783486010), (4, 391743005), (5, 313394404), (10, 156697202), (20, 78348601), (139, 11273180), (278, 5636590), (556, 2818295), (599, 2615980), (695, 2254636), (941, 1665220), (1198, 1307990), (1390, 1127318), (1882, 832610), (2396, 653995), (2780, 563659), (2995, 523196), (3764, 416305), (4705, 333044), (5990, 261598), (9410, 166522), (11980, 130799), (18820, 83261)]