20152790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 23973418

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 37, 62, 70, 74, 155, 185, 217, 251, 259, 310, 370, 434, 502, 518, 1085, 1147, 1255, 1295, 1757, 2170, 2294, 2510, 2590, 3514, 5735, 7781, 8029, 8785, 9287, 11470, 15562, 16058, 17570, 18574, 38905, 40145, 46435, 54467, 65009, 77810, 80290, 92870, 108934, 130018, 272335, 287897, 325045, 544670, 575794, 650090, 1439485, 2015279, 2878970, 4030558, 10076395, 20152790]

約数ペア:

[(1, 20152790), (2, 10076395), (5, 4030558), (7, 2878970), (10, 2015279), (14, 1439485), (31, 650090), (35, 575794), (37, 544670), (62, 325045), (70, 287897), (74, 272335), (155, 130018), (185, 108934), (217, 92870), (251, 80290), (259, 77810), (310, 65009), (370, 54467), (434, 46435), (502, 40145), (518, 38905), (1085, 18574), (1147, 17570), (1255, 16058), (1295, 15562), (1757, 11470), (2170, 9287), (2294, 8785), (2510, 8029), (2590, 7781), (3514, 5735)]