318287840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:269

約数の個数: 144

約数和(自身を含む): 830088000

約数和(自身を除く): 511800160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 79, 80, 104, 130, 149, 158, 160, 169, 208, 260, 298, 316, 338, 395, 416, 520, 596, 632, 676, 745, 790, 845, 1027, 1040, 1192, 1264, 1352, 1490, 1580, 1690, 1937, 2054, 2080, 2384, 2528, 2704, 2980, 3160, 3380, 3874, 4108, 4768, 5135, 5408, 5960, 6320, 6760, 7748, 8216, 9685, 10270, 11771, 11920, 12640, 13351, 13520, 15496, 16432, 19370, 20540, 23542, 23840, 25181, 26702, 27040, 30992, 32864, 38740, 41080, 47084, 50362, 53404, 58855, 61984, 66755, 77480, 82160, 94168, 100724, 106808, 117710, 125905, 133510, 153023, 154960, 164320, 188336, 201448, 213616, 235420, 251810, 267020, 306046, 309920, 376672, 402896, 427232, 470840, 503620, 534040, 612092, 765115, 805792, 941680, 1007240, 1068080, 1224184, 1530230, 1883360, 1989299, 2014480, 2136160, 2448368, 3060460, 3978598, 4028960, 4896736, 6120920, 7957196, 9946495, 12241840, 15914392, 19892990, 24483680, 31828784, 39785980, 63657568, 79571960, 159143920, 318287840]

約数ペア:

[(1, 318287840), (2, 159143920), (4, 79571960), (5, 63657568), (8, 39785980), (10, 31828784), (13, 24483680), (16, 19892990), (20, 15914392), (26, 12241840), (32, 9946495), (40, 7957196), (52, 6120920), (65, 4896736), (79, 4028960), (80, 3978598), (104, 3060460), (130, 2448368), (149, 2136160), (158, 2014480), (160, 1989299), (169, 1883360), (208, 1530230), (260, 1224184), (298, 1068080), (316, 1007240), (338, 941680), (395, 805792), (416, 765115), (520, 612092), (596, 534040), (632, 503620), (676, 470840), (745, 427232), (790, 402896), (845, 376672), (1027, 309920), (1040, 306046), (1192, 267020), (1264, 251810), (1352, 235420), (1490, 213616), (1580, 201448), (1690, 188336), (1937, 164320), (2054, 154960), (2080, 153023), (2384, 133510), (2528, 125905), (2704, 117710), (2980, 106808), (3160, 100724), (3380, 94168), (3874, 82160), (4108, 77480), (4768, 66755), (5135, 61984), (5408, 58855), (5960, 53404), (6320, 50362), (6760, 47084), (7748, 41080), (8216, 38740), (9685, 32864), (10270, 30992), (11771, 27040), (11920, 26702), (12640, 25181), (13351, 23840), (13520, 23542), (15496, 20540), (16432, 19370)]