25978928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{881}}^1$

素因数の和:1005

約数の個数: 40

約数和(自身を含む): 53590320

約数和(自身を除く): 27611392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 97, 152, 194, 304, 388, 776, 881, 1552, 1762, 1843, 3524, 3686, 7048, 7372, 14096, 14744, 16739, 29488, 33478, 66956, 85457, 133912, 170914, 267824, 341828, 683656, 1367312, 1623683, 3247366, 6494732, 12989464, 25978928]

約数ペア:

[(1, 25978928), (2, 12989464), (4, 6494732), (8, 3247366), (16, 1623683), (19, 1367312), (38, 683656), (76, 341828), (97, 267824), (152, 170914), (194, 133912), (304, 85457), (388, 66956), (776, 33478), (881, 29488), (1552, 16739), (1762, 14744), (1843, 14096), (3524, 7372), (3686, 7048)]