161137970

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 342144000

約数和(自身を除く): 181006030

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 109, 218, 245, 343, 431, 490, 545, 686, 763, 862, 1090, 1526, 1715, 2155, 3017, 3430, 3815, 4310, 5341, 6034, 7630, 10682, 15085, 21119, 26705, 30170, 37387, 42238, 46979, 53410, 74774, 93958, 105595, 147833, 186935, 211190, 234895, 295666, 328853, 373870, 469790, 657706, 739165, 1478330, 1644265, 2301971, 3288530, 4603942, 11509855, 16113797, 23019710, 32227594, 80568985, 161137970]

約数ペア:

[(1, 161137970), (2, 80568985), (5, 32227594), (7, 23019710), (10, 16113797), (14, 11509855), (35, 4603942), (49, 3288530), (70, 2301971), (98, 1644265), (109, 1478330), (218, 739165), (245, 657706), (343, 469790), (431, 373870), (490, 328853), (545, 295666), (686, 234895), (763, 211190), (862, 186935), (1090, 147833), (1526, 105595), (1715, 93958), (2155, 74774), (3017, 53410), (3430, 46979), (3815, 42238), (4310, 37387), (5341, 30170), (6034, 26705), (7630, 21119), (10682, 15085)]