256115580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26513}}^1$

素因数の和:26555

約数の個数: 96

約数和(自身を含む): 855235584

約数和(自身を除く): 599120004

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2415, 3220, 4830, 9660, 26513, 53026, 79539, 106052, 132565, 159078, 185591, 265130, 318156, 371182, 397695, 530260, 556773, 609799, 742364, 795390, 927955, 1113546, 1219598, 1590780, 1829397, 1855910, 2227092, 2439196, 2783865, 3048995, 3658794, 3711820, 4268593, 5567730, 6097990, 7317588, 8537186, 9146985, 11135460, 12195980, 12805779, 17074372, 18293970, 21342965, 25611558, 36587940, 42685930, 51223116, 64028895, 85371860, 128057790, 256115580]

約数ペア:

[(1, 256115580), (2, 128057790), (3, 85371860), (4, 64028895), (5, 51223116), (6, 42685930), (7, 36587940), (10, 25611558), (12, 21342965), (14, 18293970), (15, 17074372), (20, 12805779), (21, 12195980), (23, 11135460), (28, 9146985), (30, 8537186), (35, 7317588), (42, 6097990), (46, 5567730), (60, 4268593), (69, 3711820), (70, 3658794), (84, 3048995), (92, 2783865), (105, 2439196), (115, 2227092), (138, 1855910), (140, 1829397), (161, 1590780), (210, 1219598), (230, 1113546), (276, 927955), (322, 795390), (345, 742364), (420, 609799), (460, 556773), (483, 530260), (644, 397695), (690, 371182), (805, 318156), (966, 265130), (1380, 185591), (1610, 159078), (1932, 132565), (2415, 106052), (3220, 79539), (4830, 53026), (9660, 26513)]