687392020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{35839}}^1$

素因数の和:35992

約数の個数: 48

約数和(自身を含む): 1661829120

約数和(自身を除く): 974437100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3836, 4795, 9590, 19180, 35839, 71678, 143356, 179195, 250873, 358390, 501746, 716780, 1003492, 1254365, 2508730, 4909943, 5017460, 9819886, 19639772, 24549715, 34369601, 49099430, 68739202, 98198860, 137478404, 171848005, 343696010, 687392020]

約数ペア:

[(1, 687392020), (2, 343696010), (4, 171848005), (5, 137478404), (7, 98198860), (10, 68739202), (14, 49099430), (20, 34369601), (28, 24549715), (35, 19639772), (70, 9819886), (137, 5017460), (140, 4909943), (274, 2508730), (548, 1254365), (685, 1003492), (959, 716780), (1370, 501746), (1918, 358390), (2740, 250873), (3836, 179195), (4795, 143356), (9590, 71678), (19180, 35839)]