20597720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{277}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 54943920

約数和(自身を除く): 34346200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 277, 286, 338, 440, 520, 554, 572, 676, 715, 845, 1108, 1144, 1352, 1385, 1430, 1690, 1859, 2216, 2770, 2860, 3047, 3380, 3601, 3718, 5540, 5720, 6094, 6760, 7202, 7436, 9295, 11080, 12188, 14404, 14872, 15235, 18005, 18590, 24376, 28808, 30470, 36010, 37180, 39611, 46813, 60940, 72020, 74360, 79222, 93626, 121880, 144040, 158444, 187252, 198055, 234065, 316888, 374504, 396110, 468130, 514943, 792220, 936260, 1029886, 1584440, 1872520, 2059772, 2574715, 4119544, 5149430, 10298860, 20597720]

約数ペア:

[(1, 20597720), (2, 10298860), (4, 5149430), (5, 4119544), (8, 2574715), (10, 2059772), (11, 1872520), (13, 1584440), (20, 1029886), (22, 936260), (26, 792220), (40, 514943), (44, 468130), (52, 396110), (55, 374504), (65, 316888), (88, 234065), (104, 198055), (110, 187252), (130, 158444), (143, 144040), (169, 121880), (220, 93626), (260, 79222), (277, 74360), (286, 72020), (338, 60940), (440, 46813), (520, 39611), (554, 37180), (572, 36010), (676, 30470), (715, 28808), (845, 24376), (1108, 18590), (1144, 18005), (1352, 15235), (1385, 14872), (1430, 14404), (1690, 12188), (1859, 11080), (2216, 9295), (2770, 7436), (2860, 7202), (3047, 6760), (3380, 6094), (3601, 5720), (3718, 5540)]