215397868

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{809}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 444709440

約数和(自身を除く): 229311572

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 257, 259, 514, 518, 809, 1028, 1036, 1618, 1799, 3236, 3598, 5663, 7196, 9509, 11326, 19018, 22652, 29933, 38036, 59866, 66563, 119732, 133126, 207913, 209531, 266252, 415826, 419062, 831652, 838124, 1455391, 2910782, 5821564, 7692781, 15385562, 30771124, 53849467, 107698934, 215397868]

約数ペア:

[(1, 215397868), (2, 107698934), (4, 53849467), (7, 30771124), (14, 15385562), (28, 7692781), (37, 5821564), (74, 2910782), (148, 1455391), (257, 838124), (259, 831652), (514, 419062), (518, 415826), (809, 266252), (1028, 209531), (1036, 207913), (1618, 133126), (1799, 119732), (3236, 66563), (3598, 59866), (5663, 38036), (7196, 29933), (9509, 22652), (11326, 19018)]