87012211100

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1721}}^1\times {\mathrm{7121}}^1$

素因数の和:8927

約数の個数: 72

約数和(自身を含む): 191614048416

約数和(自身を除く): 104601837316

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1721, 1775, 3442, 3550, 6884, 7100, 7121, 8605, 14242, 17210, 28484, 34420, 35605, 43025, 71210, 86050, 122191, 142420, 172100, 178025, 244382, 356050, 488764, 505591, 610955, 712100, 1011182, 1221910, 2022364, 2443820, 2527955, 3054775, 5055910, 6109550, 10111820, 12219100, 12255241, 12639775, 24510482, 25279550, 49020964, 50559100, 61276205, 122552410, 245104820, 306381025, 612762050, 870122111, 1225524100, 1740244222, 3480488444, 4350610555, 8701221110, 17402442220, 21753052775, 43506105550, 87012211100]

約数ペア:

[(1, 87012211100), (2, 43506105550), (4, 21753052775), (5, 17402442220), (10, 8701221110), (20, 4350610555), (25, 3480488444), (50, 1740244222), (71, 1225524100), (100, 870122111), (142, 612762050), (284, 306381025), (355, 245104820), (710, 122552410), (1420, 61276205), (1721, 50559100), (1775, 49020964), (3442, 25279550), (3550, 24510482), (6884, 12639775), (7100, 12255241), (7121, 12219100), (8605, 10111820), (14242, 6109550), (17210, 5055910), (28484, 3054775), (34420, 2527955), (35605, 2443820), (43025, 2022364), (71210, 1221910), (86050, 1011182), (122191, 712100), (142420, 610955), (172100, 505591), (178025, 488764), (244382, 356050)]