1993579720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{28859}}^1$

素因数の和:29038

約数の個数: 64

約数和(自身を含む): 4924670400

約数和(自身を除く): 2931090680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 314, 440, 628, 785, 1256, 1570, 1727, 3140, 3454, 6280, 6908, 8635, 13816, 17270, 28859, 34540, 57718, 69080, 115436, 144295, 230872, 288590, 317449, 577180, 634898, 1154360, 1269796, 1587245, 2539592, 3174490, 4530863, 6348980, 9061726, 12697960, 18123452, 22654315, 36246904, 45308630, 49839493, 90617260, 99678986, 181234520, 199357972, 249197465, 398715944, 498394930, 996789860, 1993579720]

約数ペア:

[(1, 1993579720), (2, 996789860), (4, 498394930), (5, 398715944), (8, 249197465), (10, 199357972), (11, 181234520), (20, 99678986), (22, 90617260), (40, 49839493), (44, 45308630), (55, 36246904), (88, 22654315), (110, 18123452), (157, 12697960), (220, 9061726), (314, 6348980), (440, 4530863), (628, 3174490), (785, 2539592), (1256, 1587245), (1570, 1269796), (1727, 1154360), (3140, 634898), (3454, 577180), (6280, 317449), (6908, 288590), (8635, 230872), (13816, 144295), (17270, 115436), (28859, 69080), (34540, 57718)]