20550110

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2467}}^1$

素因数の和:2505

約数の個数: 48

約数和(自身を含む): 45579024

約数和(自身を除く): 25028914

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 490, 595, 833, 1190, 1666, 2467, 4165, 4934, 8330, 12335, 17269, 24670, 34538, 41939, 83878, 86345, 120883, 172690, 209695, 241766, 293573, 419390, 587146, 604415, 1208830, 1467865, 2055011, 2935730, 4110022, 10275055, 20550110]

約数ペア:

[(1, 20550110), (2, 10275055), (5, 4110022), (7, 2935730), (10, 2055011), (14, 1467865), (17, 1208830), (34, 604415), (35, 587146), (49, 419390), (70, 293573), (85, 241766), (98, 209695), (119, 172690), (170, 120883), (238, 86345), (245, 83878), (490, 41939), (595, 34538), (833, 24670), (1190, 17269), (1666, 12335), (2467, 8330), (4165, 4934)]