661858238896

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{297598129}}^1$

素因数の和:297598276

約数の個数: 20

約数和(自身を含む): 1291575884200

約数和(自身を除く): 629717645304

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 297598129, 595196258, 1190392516, 2380785032, 4761570064, 41366139931, 82732279862, 165464559724, 330929119448, 661858238896]

約数ペア:

[(1, 661858238896), (2, 330929119448), (4, 165464559724), (8, 82732279862), (16, 41366139931), (139, 4761570064), (278, 2380785032), (556, 1190392516), (1112, 595196258), (2224, 297598129)]