68128760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 186624000

約数和(自身を除く): 118495240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 71, 92, 115, 140, 142, 149, 161, 184, 230, 280, 284, 298, 322, 355, 460, 497, 568, 596, 644, 710, 745, 805, 920, 994, 1043, 1192, 1288, 1420, 1490, 1610, 1633, 1988, 2086, 2485, 2840, 2980, 3220, 3266, 3427, 3976, 4172, 4970, 5215, 5960, 6440, 6532, 6854, 8165, 8344, 9940, 10430, 10579, 11431, 13064, 13708, 16330, 17135, 19880, 20860, 21158, 22862, 23989, 27416, 32660, 34270, 41720, 42316, 45724, 47978, 52895, 57155, 65320, 68540, 74053, 84632, 91448, 95956, 105790, 114310, 119945, 137080, 148106, 191912, 211580, 228620, 239890, 243317, 296212, 370265, 423160, 457240, 479780, 486634, 592424, 740530, 959560, 973268, 1216585, 1481060, 1703219, 1946536, 2433170, 2962120, 3406438, 4866340, 6812876, 8516095, 9732680, 13625752, 17032190, 34064380, 68128760]

約数ペア:

[(1, 68128760), (2, 34064380), (4, 17032190), (5, 13625752), (7, 9732680), (8, 8516095), (10, 6812876), (14, 4866340), (20, 3406438), (23, 2962120), (28, 2433170), (35, 1946536), (40, 1703219), (46, 1481060), (56, 1216585), (70, 973268), (71, 959560), (92, 740530), (115, 592424), (140, 486634), (142, 479780), (149, 457240), (161, 423160), (184, 370265), (230, 296212), (280, 243317), (284, 239890), (298, 228620), (322, 211580), (355, 191912), (460, 148106), (497, 137080), (568, 119945), (596, 114310), (644, 105790), (710, 95956), (745, 91448), (805, 84632), (920, 74053), (994, 68540), (1043, 65320), (1192, 57155), (1288, 52895), (1420, 47978), (1490, 45724), (1610, 42316), (1633, 41720), (1988, 34270), (2086, 32660), (2485, 27416), (2840, 23989), (2980, 22862), (3220, 21158), (3266, 20860), (3427, 19880), (3976, 17135), (4172, 16330), (4970, 13708), (5215, 13064), (5960, 11431), (6440, 10579), (6532, 10430), (6854, 9940), (8165, 8344)]