31911880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{797}}^1$

素因数の和:839

約数の個数: 128

約数和(自身を含む): 96526080

約数和(自身を除く): 64614200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 797, 910, 1001, 1144, 1430, 1540, 1594, 1820, 2002, 2860, 3080, 3188, 3640, 3985, 4004, 5005, 5579, 5720, 6376, 7970, 8008, 8767, 10010, 10361, 11158, 15940, 17534, 20020, 20722, 22316, 27895, 31880, 35068, 40040, 41444, 43835, 44632, 51805, 55790, 61369, 70136, 72527, 82888, 87670, 103610, 111580, 113971, 122738, 145054, 175340, 207220, 223160, 227942, 245476, 290108, 306845, 350680, 362635, 414440, 455884, 490952, 569855, 580216, 613690, 725270, 797797, 911768, 1139710, 1227380, 1450540, 1595594, 2279420, 2454760, 2901080, 3191188, 3988985, 4558840, 6382376, 7977970, 15955940, 31911880]

約数ペア:

[(1, 31911880), (2, 15955940), (4, 7977970), (5, 6382376), (7, 4558840), (8, 3988985), (10, 3191188), (11, 2901080), (13, 2454760), (14, 2279420), (20, 1595594), (22, 1450540), (26, 1227380), (28, 1139710), (35, 911768), (40, 797797), (44, 725270), (52, 613690), (55, 580216), (56, 569855), (65, 490952), (70, 455884), (77, 414440), (88, 362635), (91, 350680), (104, 306845), (110, 290108), (130, 245476), (140, 227942), (143, 223160), (154, 207220), (182, 175340), (220, 145054), (260, 122738), (280, 113971), (286, 111580), (308, 103610), (364, 87670), (385, 82888), (440, 72527), (455, 70136), (520, 61369), (572, 55790), (616, 51805), (715, 44632), (728, 43835), (770, 41444), (797, 40040), (910, 35068), (1001, 31880), (1144, 27895), (1430, 22316), (1540, 20722), (1594, 20020), (1820, 17534), (2002, 15940), (2860, 11158), (3080, 10361), (3188, 10010), (3640, 8767), (3985, 8008), (4004, 7970), (5005, 6376), (5579, 5720)]