25691984

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:507

約数の個数: 40

約数和(自身を含む): 51559200

約数和(自身を除く): 25867216

約数列:

[1, 2, 4, 8, 16, 43, 86, 107, 172, 214, 344, 349, 428, 688, 698, 856, 1396, 1712, 2792, 4601, 5584, 9202, 15007, 18404, 30014, 36808, 37343, 60028, 73616, 74686, 120056, 149372, 240112, 298744, 597488, 1605749, 3211498, 6422996, 12845992, 25691984]

約数ペア:

[(1, 25691984), (2, 12845992), (4, 6422996), (8, 3211498), (16, 1605749), (43, 597488), (86, 298744), (107, 240112), (172, 149372), (214, 120056), (344, 74686), (349, 73616), (428, 60028), (688, 37343), (698, 36808), (856, 30014), (1396, 18404), (1712, 15007), (2792, 9202), (4601, 5584)]