19870293580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2557}}^1\times {\mathrm{3847}}^1$

素因数の和:6514

約数の個数: 48

約数和(自身を含む): 42168200256

約数和(自身を除く): 22297906676

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 2557, 3847, 5114, 7694, 10228, 12785, 15388, 19235, 25570, 38470, 51140, 76940, 258257, 388547, 516514, 777094, 1033028, 1291285, 1554188, 1942735, 2582570, 3885470, 5165140, 7770940, 9836779, 19673558, 39347116, 49183895, 98367790, 196735580, 993514679, 1987029358, 3974058716, 4967573395, 9935146790, 19870293580]

約数ペア:

[(1, 19870293580), (2, 9935146790), (4, 4967573395), (5, 3974058716), (10, 1987029358), (20, 993514679), (101, 196735580), (202, 98367790), (404, 49183895), (505, 39347116), (1010, 19673558), (2020, 9836779), (2557, 7770940), (3847, 5165140), (5114, 3885470), (7694, 2582570), (10228, 1942735), (12785, 1554188), (15388, 1291285), (19235, 1033028), (25570, 777094), (38470, 516514), (51140, 388547), (76940, 258257)]