820367020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{44927}}^1$

素因数の和:45030

約数の個数: 48

約数和(自身を含む): 1902071808

約数和(自身を除く): 1081704788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1660, 1826, 3652, 4565, 9130, 18260, 44927, 89854, 179708, 224635, 449270, 494197, 898540, 988394, 1976788, 2470985, 3728941, 4941970, 7457882, 9883940, 14915764, 18644705, 37289410, 41018351, 74578820, 82036702, 164073404, 205091755, 410183510, 820367020]

約数ペア:

[(1, 820367020), (2, 410183510), (4, 205091755), (5, 164073404), (10, 82036702), (11, 74578820), (20, 41018351), (22, 37289410), (44, 18644705), (55, 14915764), (83, 9883940), (110, 7457882), (166, 4941970), (220, 3728941), (332, 2470985), (415, 1976788), (830, 988394), (913, 898540), (1660, 494197), (1826, 449270), (3652, 224635), (4565, 179708), (9130, 89854), (18260, 44927)]