19512920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 50561280

約数和(自身を除く): 31048360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 307, 454, 614, 908, 1135, 1228, 1535, 1589, 1816, 2149, 2270, 2456, 3070, 3178, 4298, 4540, 6140, 6356, 7945, 8596, 9080, 10745, 12280, 12712, 15890, 17192, 21490, 31780, 42980, 63560, 69689, 85960, 139378, 278756, 348445, 487823, 557512, 696890, 975646, 1393780, 1951292, 2439115, 2787560, 3902584, 4878230, 9756460, 19512920]

約数ペア:

[(1, 19512920), (2, 9756460), (4, 4878230), (5, 3902584), (7, 2787560), (8, 2439115), (10, 1951292), (14, 1393780), (20, 975646), (28, 696890), (35, 557512), (40, 487823), (56, 348445), (70, 278756), (140, 139378), (227, 85960), (280, 69689), (307, 63560), (454, 42980), (614, 31780), (908, 21490), (1135, 17192), (1228, 15890), (1535, 12712), (1589, 12280), (1816, 10745), (2149, 9080), (2270, 8596), (2456, 7945), (3070, 6356), (3178, 6140), (4298, 4540)]