256616356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^2\times {\mathrm{331}}^1$

素因数の和:556

約数の個数: 36

約数和(自身を含む): 478883440

約数和(自身を除く): 222267084

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 331, 404, 662, 1324, 1919, 3838, 6289, 7676, 10201, 12578, 20402, 25156, 33431, 40804, 66862, 133724, 193819, 387638, 635189, 775276, 1270378, 2540756, 3376531, 6753062, 13506124, 64154089, 128308178, 256616356]

約数ペア:

[(1, 256616356), (2, 128308178), (4, 64154089), (19, 13506124), (38, 6753062), (76, 3376531), (101, 2540756), (202, 1270378), (331, 775276), (404, 635189), (662, 387638), (1324, 193819), (1919, 133724), (3838, 66862), (6289, 40804), (7676, 33431), (10201, 25156), (12578, 20402)]