2087702980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{120121}}^1$

素因数の和:120220

約数の個数: 48

約数和(自身を含む): 4843319040

約数和(自身を除く): 2755616060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 17380, 120121, 240242, 480484, 600605, 1201210, 1321331, 2402420, 2642662, 5285324, 6606655, 9489559, 13213310, 18979118, 26426620, 37958236, 47447795, 94895590, 104385149, 189791180, 208770298, 417540596, 521925745, 1043851490, 2087702980]

約数ペア:

[(1, 2087702980), (2, 1043851490), (4, 521925745), (5, 417540596), (10, 208770298), (11, 189791180), (20, 104385149), (22, 94895590), (44, 47447795), (55, 37958236), (79, 26426620), (110, 18979118), (158, 13213310), (220, 9489559), (316, 6606655), (395, 5285324), (790, 2642662), (869, 2402420), (1580, 1321331), (1738, 1201210), (3476, 600605), (4345, 480484), (8690, 240242), (17380, 120121)]