68870000

素因数分解:

$2^4\times 5^4\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 100

約数和(自身を含む): 170832816

約数和(自身を除く): 101962816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 97, 100, 125, 142, 194, 200, 250, 284, 355, 388, 400, 485, 500, 568, 625, 710, 776, 970, 1000, 1136, 1250, 1420, 1552, 1775, 1940, 2000, 2425, 2500, 2840, 3550, 3880, 4850, 5000, 5680, 6887, 7100, 7760, 8875, 9700, 10000, 12125, 13774, 14200, 17750, 19400, 24250, 27548, 28400, 34435, 35500, 38800, 44375, 48500, 55096, 60625, 68870, 71000, 88750, 97000, 110192, 121250, 137740, 142000, 172175, 177500, 194000, 242500, 275480, 344350, 355000, 485000, 550960, 688700, 710000, 860875, 970000, 1377400, 1721750, 2754800, 3443500, 4304375, 6887000, 8608750, 13774000, 17217500, 34435000, 68870000]

約数ペア:

[(1, 68870000), (2, 34435000), (4, 17217500), (5, 13774000), (8, 8608750), (10, 6887000), (16, 4304375), (20, 3443500), (25, 2754800), (40, 1721750), (50, 1377400), (71, 970000), (80, 860875), (97, 710000), (100, 688700), (125, 550960), (142, 485000), (194, 355000), (200, 344350), (250, 275480), (284, 242500), (355, 194000), (388, 177500), (400, 172175), (485, 142000), (500, 137740), (568, 121250), (625, 110192), (710, 97000), (776, 88750), (970, 71000), (1000, 68870), (1136, 60625), (1250, 55096), (1420, 48500), (1552, 44375), (1775, 38800), (1940, 35500), (2000, 34435), (2425, 28400), (2500, 27548), (2840, 24250), (3550, 19400), (3880, 17750), (4850, 14200), (5000, 13774), (5680, 12125), (6887, 10000), (7100, 9700), (7760, 8875)]