18606928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:755

約数の個数: 40

約数和(自身を含む): 38400320

約数和(自身を除く): 19793392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 97, 152, 194, 304, 388, 631, 776, 1262, 1552, 1843, 2524, 3686, 5048, 7372, 10096, 11989, 14744, 23978, 29488, 47956, 61207, 95912, 122414, 191824, 244828, 489656, 979312, 1162933, 2325866, 4651732, 9303464, 18606928]

約数ペア:

[(1, 18606928), (2, 9303464), (4, 4651732), (8, 2325866), (16, 1162933), (19, 979312), (38, 489656), (76, 244828), (97, 191824), (152, 122414), (194, 95912), (304, 61207), (388, 47956), (631, 29488), (776, 23978), (1262, 14744), (1552, 11989), (1843, 10096), (2524, 7372), (3686, 5048)]