520012220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{285721}}^1$

素因数の和:285750

約数の個数: 48

約数和(自身を含む): 1344036288

約数和(自身を除く): 824024068

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 285721, 571442, 1142884, 1428605, 2000047, 2857210, 3714373, 4000094, 5714420, 7428746, 8000188, 10000235, 14857492, 18571865, 20000470, 26000611, 37143730, 40000940, 52001222, 74287460, 104002444, 130003055, 260006110, 520012220]

約数ペア:

[(1, 520012220), (2, 260006110), (4, 130003055), (5, 104002444), (7, 74287460), (10, 52001222), (13, 40000940), (14, 37143730), (20, 26000611), (26, 20000470), (28, 18571865), (35, 14857492), (52, 10000235), (65, 8000188), (70, 7428746), (91, 5714420), (130, 4000094), (140, 3714373), (182, 2857210), (260, 2000047), (364, 1428605), (455, 1142884), (910, 571442), (1820, 285721)]