26915980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:695

約数の個数: 96

約数和(自身を含む): 72705024

約数和(自身を除く): 45789044

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 643, 644, 805, 910, 1196, 1286, 1495, 1610, 1820, 2093, 2572, 2990, 3215, 3220, 4186, 4501, 5980, 6430, 8359, 8372, 9002, 10465, 12860, 14789, 16718, 18004, 20930, 22505, 29578, 33436, 41795, 41860, 45010, 58513, 59156, 73945, 83590, 90020, 103523, 117026, 147890, 167180, 192257, 207046, 234052, 292565, 295780, 384514, 414092, 517615, 585130, 769028, 961285, 1035230, 1170260, 1345799, 1922570, 2070460, 2691598, 3845140, 5383196, 6728995, 13457990, 26915980]

約数ペア:

[(1, 26915980), (2, 13457990), (4, 6728995), (5, 5383196), (7, 3845140), (10, 2691598), (13, 2070460), (14, 1922570), (20, 1345799), (23, 1170260), (26, 1035230), (28, 961285), (35, 769028), (46, 585130), (52, 517615), (65, 414092), (70, 384514), (91, 295780), (92, 292565), (115, 234052), (130, 207046), (140, 192257), (161, 167180), (182, 147890), (230, 117026), (260, 103523), (299, 90020), (322, 83590), (364, 73945), (455, 59156), (460, 58513), (598, 45010), (643, 41860), (644, 41795), (805, 33436), (910, 29578), (1196, 22505), (1286, 20930), (1495, 18004), (1610, 16718), (1820, 14789), (2093, 12860), (2572, 10465), (2990, 9002), (3215, 8372), (3220, 8359), (4186, 6430), (4501, 5980)]