31179720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 256

約数和(自身を含む): 116121600

約数和(自身を除く): 84941880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 23, 24, 26, 30, 33, 39, 40, 44, 46, 52, 55, 60, 65, 66, 69, 78, 79, 88, 92, 104, 110, 115, 120, 130, 132, 138, 143, 156, 158, 165, 184, 195, 220, 230, 237, 253, 260, 264, 276, 286, 299, 312, 316, 330, 345, 390, 395, 429, 440, 460, 474, 506, 520, 552, 572, 598, 632, 660, 690, 715, 759, 780, 790, 858, 869, 897, 920, 948, 1012, 1027, 1144, 1185, 1196, 1265, 1320, 1380, 1430, 1495, 1518, 1560, 1580, 1716, 1738, 1794, 1817, 1896, 2024, 2054, 2145, 2370, 2392, 2530, 2607, 2760, 2860, 2990, 3036, 3081, 3160, 3289, 3432, 3476, 3588, 3634, 3795, 4108, 4290, 4345, 4485, 4740, 5060, 5135, 5214, 5451, 5720, 5980, 6072, 6162, 6578, 6952, 7176, 7268, 7590, 8216, 8580, 8690, 8970, 9085, 9480, 9867, 10120, 10270, 10428, 10902, 11297, 11960, 12324, 13035, 13156, 14536, 15180, 15405, 16445, 17160, 17380, 17940, 18170, 19734, 19987, 20540, 20856, 21804, 22594, 23621, 24648, 26070, 26312, 27255, 30360, 30810, 32890, 33891, 34760, 35880, 36340, 39468, 39974, 41080, 43608, 45188, 47242, 49335, 52140, 54510, 56485, 59961, 61620, 65780, 67782, 70863, 72680, 78936, 79948, 90376, 94484, 98670, 99935, 104280, 109020, 112970, 118105, 119922, 123240, 131560, 135564, 141726, 159896, 169455, 188968, 197340, 199870, 218040, 225940, 236210, 239844, 259831, 271128, 283452, 299805, 338910, 354315, 394680, 399740, 451880, 472420, 479688, 519662, 566904, 599610, 677820, 708630, 779493, 799480, 944840, 1039324, 1199220, 1299155, 1355640, 1417260, 1558986, 2078648, 2398440, 2598310, 2834520, 3117972, 3897465, 5196620, 6235944, 7794930, 10393240, 15589860, 31179720]

約数ペア:

[(1, 31179720), (2, 15589860), (3, 10393240), (4, 7794930), (5, 6235944), (6, 5196620), (8, 3897465), (10, 3117972), (11, 2834520), (12, 2598310), (13, 2398440), (15, 2078648), (20, 1558986), (22, 1417260), (23, 1355640), (24, 1299155), (26, 1199220), (30, 1039324), (33, 944840), (39, 799480), (40, 779493), (44, 708630), (46, 677820), (52, 599610), (55, 566904), (60, 519662), (65, 479688), (66, 472420), (69, 451880), (78, 399740), (79, 394680), (88, 354315), (92, 338910), (104, 299805), (110, 283452), (115, 271128), (120, 259831), (130, 239844), (132, 236210), (138, 225940), (143, 218040), (156, 199870), (158, 197340), (165, 188968), (184, 169455), (195, 159896), (220, 141726), (230, 135564), (237, 131560), (253, 123240), (260, 119922), (264, 118105), (276, 112970), (286, 109020), (299, 104280), (312, 99935), (316, 98670), (330, 94484), (345, 90376), (390, 79948), (395, 78936), (429, 72680), (440, 70863), (460, 67782), (474, 65780), (506, 61620), (520, 59961), (552, 56485), (572, 54510), (598, 52140), (632, 49335), (660, 47242), (690, 45188), (715, 43608), (759, 41080), (780, 39974), (790, 39468), (858, 36340), (869, 35880), (897, 34760), (920, 33891), (948, 32890), (1012, 30810), (1027, 30360), (1144, 27255), (1185, 26312), (1196, 26070), (1265, 24648), (1320, 23621), (1380, 22594), (1430, 21804), (1495, 20856), (1518, 20540), (1560, 19987), (1580, 19734), (1716, 18170), (1738, 17940), (1794, 17380), (1817, 17160), (1896, 16445), (2024, 15405), (2054, 15180), (2145, 14536), (2370, 13156), (2392, 13035), (2530, 12324), (2607, 11960), (2760, 11297), (2860, 10902), (2990, 10428), (3036, 10270), (3081, 10120), (3160, 9867), (3289, 9480), (3432, 9085), (3476, 8970), (3588, 8690), (3634, 8580), (3795, 8216), (4108, 7590), (4290, 7268), (4345, 7176), (4485, 6952), (4740, 6578), (5060, 6162), (5135, 6072), (5214, 5980), (5451, 5720)]