9918580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 25137000

約数和(自身を除く): 15218420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 349, 406, 490, 580, 698, 812, 980, 1015, 1396, 1421, 1745, 2030, 2443, 2842, 3490, 4060, 4886, 5684, 6980, 7105, 9772, 10121, 12215, 14210, 17101, 20242, 24430, 28420, 34202, 40484, 48860, 50605, 68404, 70847, 85505, 101210, 141694, 171010, 202420, 283388, 342020, 354235, 495929, 708470, 991858, 1416940, 1983716, 2479645, 4959290, 9918580]

約数ペア:

[(1, 9918580), (2, 4959290), (4, 2479645), (5, 1983716), (7, 1416940), (10, 991858), (14, 708470), (20, 495929), (28, 354235), (29, 342020), (35, 283388), (49, 202420), (58, 171010), (70, 141694), (98, 101210), (116, 85505), (140, 70847), (145, 68404), (196, 50605), (203, 48860), (245, 40484), (290, 34202), (349, 28420), (406, 24430), (490, 20242), (580, 17101), (698, 14210), (812, 12215), (980, 10121), (1015, 9772), (1396, 7105), (1421, 6980), (1745, 5684), (2030, 4886), (2443, 4060), (2842, 3490)]