20165571460

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1559}}^1\times {\mathrm{4937}}^1$

素因数の和:6636

約数の個数: 48

約数和(自身を含む): 42706984320

約数和(自身を除く): 22541412860

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 1559, 2620, 3118, 4937, 6236, 7795, 9874, 15590, 19748, 24685, 31180, 49370, 98740, 204229, 408458, 646747, 816916, 1021145, 1293494, 2042290, 2586988, 3233735, 4084580, 6467470, 7696783, 12934940, 15393566, 30787132, 38483915, 76967830, 153935660, 1008278573, 2016557146, 4033114292, 5041392865, 10082785730, 20165571460]

約数ペア:

[(1, 20165571460), (2, 10082785730), (4, 5041392865), (5, 4033114292), (10, 2016557146), (20, 1008278573), (131, 153935660), (262, 76967830), (524, 38483915), (655, 30787132), (1310, 15393566), (1559, 12934940), (2620, 7696783), (3118, 6467470), (4937, 4084580), (6236, 3233735), (7795, 2586988), (9874, 2042290), (15590, 1293494), (19748, 1021145), (24685, 816916), (31180, 646747), (49370, 408458), (98740, 204229)]