19103804930

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{639137}}^1$

素因数の和:639219

約数の個数: 48

約数和(自身を含む): 40656846456

約数和(自身を除く): 21553041526

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945, 29890, 639137, 1278274, 3195685, 4473959, 6391370, 8947918, 22369795, 31317713, 38987357, 44739590, 62635426, 77974714, 156588565, 194936785, 272911499, 313177130, 389873570, 545822998, 1364557495, 1910380493, 2729114990, 3820760986, 9551902465, 19103804930]

約数ペア:

[(1, 19103804930), (2, 9551902465), (5, 3820760986), (7, 2729114990), (10, 1910380493), (14, 1364557495), (35, 545822998), (49, 389873570), (61, 313177130), (70, 272911499), (98, 194936785), (122, 156588565), (245, 77974714), (305, 62635426), (427, 44739590), (490, 38987357), (610, 31317713), (854, 22369795), (2135, 8947918), (2989, 6391370), (4270, 4473959), (5978, 3195685), (14945, 1278274), (29890, 639137)]