9900520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1861}}^1$

素因数の和:1898

約数の個数: 64

約数和(自身を含む): 26812800

約数和(自身を除く): 16912280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 1861, 2660, 3722, 5320, 7444, 9305, 13027, 14888, 18610, 26054, 35359, 37220, 52108, 65135, 70718, 74440, 104216, 130270, 141436, 176795, 247513, 260540, 282872, 353590, 495026, 521080, 707180, 990052, 1237565, 1414360, 1980104, 2475130, 4950260, 9900520]

約数ペア:

[(1, 9900520), (2, 4950260), (4, 2475130), (5, 1980104), (7, 1414360), (8, 1237565), (10, 990052), (14, 707180), (19, 521080), (20, 495026), (28, 353590), (35, 282872), (38, 260540), (40, 247513), (56, 176795), (70, 141436), (76, 130270), (95, 104216), (133, 74440), (140, 70718), (152, 65135), (190, 52108), (266, 37220), (280, 35359), (380, 26054), (532, 18610), (665, 14888), (760, 13027), (1064, 9305), (1330, 7444), (1861, 5320), (2660, 3722)]