20887010

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 38716272

約数和(自身を除く): 17829262

約数列:

[1, 2, 5, 10, 61, 97, 122, 194, 305, 353, 485, 610, 706, 970, 1765, 3530, 5917, 11834, 21533, 29585, 34241, 43066, 59170, 68482, 107665, 171205, 215330, 342410, 2088701, 4177402, 10443505, 20887010]

約数ペア:

[(1, 20887010), (2, 10443505), (5, 4177402), (10, 2088701), (61, 342410), (97, 215330), (122, 171205), (194, 107665), (305, 68482), (353, 59170), (485, 43066), (610, 34241), (706, 29585), (970, 21533), (1765, 11834), (3530, 5917)]