1284964940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1447}}^1\times {\mathrm{6343}}^1$

素因数の和:7806

約数の個数: 48

約数和(自身を含む): 3086533632

約数和(自身を除く): 1801568692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1447, 2894, 5788, 6343, 7235, 10129, 12686, 14470, 20258, 25372, 28940, 31715, 40516, 44401, 50645, 63430, 88802, 101290, 126860, 177604, 202580, 222005, 444010, 888020, 9178321, 18356642, 36713284, 45891605, 64248247, 91783210, 128496494, 183566420, 256992988, 321241235, 642482470, 1284964940]

約数ペア:

[(1, 1284964940), (2, 642482470), (4, 321241235), (5, 256992988), (7, 183566420), (10, 128496494), (14, 91783210), (20, 64248247), (28, 45891605), (35, 36713284), (70, 18356642), (140, 9178321), (1447, 888020), (2894, 444010), (5788, 222005), (6343, 202580), (7235, 177604), (10129, 126860), (12686, 101290), (14470, 88802), (20258, 63430), (25372, 50645), (28940, 44401), (31715, 40516)]