28682920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1151}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 74649600

約数和(自身を除く): 45966680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1151, 1246, 1780, 2302, 2492, 3115, 3560, 4604, 4984, 5755, 6230, 8057, 9208, 11510, 12460, 16114, 23020, 24920, 32228, 40285, 46040, 64456, 80570, 102439, 161140, 204878, 322280, 409756, 512195, 717073, 819512, 1024390, 1434146, 2048780, 2868292, 3585365, 4097560, 5736584, 7170730, 14341460, 28682920]

約数ペア:

[(1, 28682920), (2, 14341460), (4, 7170730), (5, 5736584), (7, 4097560), (8, 3585365), (10, 2868292), (14, 2048780), (20, 1434146), (28, 1024390), (35, 819512), (40, 717073), (56, 512195), (70, 409756), (89, 322280), (140, 204878), (178, 161140), (280, 102439), (356, 80570), (445, 64456), (623, 46040), (712, 40285), (890, 32228), (1151, 24920), (1246, 23020), (1780, 16114), (2302, 12460), (2492, 11510), (3115, 9208), (3560, 8057), (4604, 6230), (4984, 5755)]