20519830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1789}}^1$

素因数の和:1864

約数の個数: 32

約数和(自身を含む): 39179520

約数和(自身を除く): 18659690

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 155, 185, 310, 370, 1147, 1789, 2294, 3578, 5735, 8945, 11470, 17890, 55459, 66193, 110918, 132386, 277295, 330965, 554590, 661930, 2051983, 4103966, 10259915, 20519830]

約数ペア:

[(1, 20519830), (2, 10259915), (5, 4103966), (10, 2051983), (31, 661930), (37, 554590), (62, 330965), (74, 277295), (155, 132386), (185, 110918), (310, 66193), (370, 55459), (1147, 17890), (1789, 11470), (2294, 8945), (3578, 5735)]