2017891000

素因数分解:

$2^3\times 5^3\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:482

約数の個数: 128

約数和(自身を含む): 4854245760

約数和(自身を除く): 2836354760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 97, 100, 125, 142, 194, 200, 250, 284, 293, 355, 388, 485, 500, 568, 586, 710, 776, 970, 1000, 1172, 1420, 1465, 1775, 1940, 2344, 2425, 2840, 2930, 3550, 3880, 4850, 5860, 6887, 7100, 7325, 8875, 9700, 11720, 12125, 13774, 14200, 14650, 17750, 19400, 20803, 24250, 27548, 28421, 29300, 34435, 35500, 36625, 41606, 48500, 55096, 56842, 58600, 68870, 71000, 73250, 83212, 97000, 104015, 113684, 137740, 142105, 146500, 166424, 172175, 208030, 227368, 275480, 284210, 293000, 344350, 416060, 520075, 568420, 688700, 710525, 832120, 860875, 1040150, 1136840, 1377400, 1421050, 1721750, 2017891, 2080300, 2600375, 2842100, 3443500, 3552625, 4035782, 4160600, 5200750, 5684200, 6887000, 7105250, 8071564, 10089455, 10401500, 14210500, 16143128, 20178910, 20803000, 28421000, 40357820, 50447275, 80715640, 100894550, 201789100, 252236375, 403578200, 504472750, 1008945500, 2017891000]

約数ペア:

[(1, 2017891000), (2, 1008945500), (4, 504472750), (5, 403578200), (8, 252236375), (10, 201789100), (20, 100894550), (25, 80715640), (40, 50447275), (50, 40357820), (71, 28421000), (97, 20803000), (100, 20178910), (125, 16143128), (142, 14210500), (194, 10401500), (200, 10089455), (250, 8071564), (284, 7105250), (293, 6887000), (355, 5684200), (388, 5200750), (485, 4160600), (500, 4035782), (568, 3552625), (586, 3443500), (710, 2842100), (776, 2600375), (970, 2080300), (1000, 2017891), (1172, 1721750), (1420, 1421050), (1465, 1377400), (1775, 1136840), (1940, 1040150), (2344, 860875), (2425, 832120), (2840, 710525), (2930, 688700), (3550, 568420), (3880, 520075), (4850, 416060), (5860, 344350), (6887, 293000), (7100, 284210), (7325, 275480), (8875, 227368), (9700, 208030), (11720, 172175), (12125, 166424), (13774, 146500), (14200, 142105), (14650, 137740), (17750, 113684), (19400, 104015), (20803, 97000), (24250, 83212), (27548, 73250), (28421, 71000), (29300, 68870), (34435, 58600), (35500, 56842), (36625, 55096), (41606, 48500)]