258293776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{28879}}^1$

素因数の和:28943

約数の個数: 40

約数和(自身を含む): 551492480

約数和(自身を除く): 293198704

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 8944, 28879, 57758, 115516, 231032, 375427, 462064, 750854, 1241797, 1501708, 2483594, 3003416, 4967188, 6006832, 9934376, 16143361, 19868752, 32286722, 64573444, 129146888, 258293776]

約数ペア:

[(1, 258293776), (2, 129146888), (4, 64573444), (8, 32286722), (13, 19868752), (16, 16143361), (26, 9934376), (43, 6006832), (52, 4967188), (86, 3003416), (104, 2483594), (172, 1501708), (208, 1241797), (344, 750854), (559, 462064), (688, 375427), (1118, 231032), (2236, 115516), (4472, 57758), (8944, 28879)]