81889720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{186113}}^1$

素因数の和:186135

約数の個数: 32

約数和(自身を含む): 201003120

約数和(自身を除く): 119113400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 186113, 372226, 744452, 930565, 1488904, 1861130, 2047243, 3722260, 4094486, 7444520, 8188972, 10236215, 16377944, 20472430, 40944860, 81889720]

約数ペア:

[(1, 81889720), (2, 40944860), (4, 20472430), (5, 16377944), (8, 10236215), (10, 8188972), (11, 7444520), (20, 4094486), (22, 3722260), (40, 2047243), (44, 1861130), (55, 1488904), (88, 930565), (110, 744452), (220, 372226), (440, 186113)]