205511280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:559

約数の個数: 160

約数和(自身を含む): 691622400

約数和(自身を除く): 486111120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 199, 208, 240, 260, 312, 331, 390, 398, 520, 597, 624, 662, 780, 796, 993, 995, 1040, 1194, 1324, 1560, 1592, 1655, 1986, 1990, 2388, 2587, 2648, 2985, 3120, 3184, 3310, 3972, 3980, 4303, 4776, 4965, 5174, 5296, 5970, 6620, 7761, 7944, 7960, 8606, 9552, 9930, 10348, 11940, 12909, 12935, 13240, 15522, 15888, 15920, 17212, 19860, 20696, 21515, 23880, 25818, 25870, 26480, 31044, 34424, 38805, 39720, 41392, 43030, 47760, 51636, 51740, 62088, 64545, 65869, 68848, 77610, 79440, 86060, 103272, 103480, 124176, 129090, 131738, 155220, 172120, 197607, 206544, 206960, 258180, 263476, 310440, 329345, 344240, 395214, 516360, 526952, 620880, 658690, 790428, 856297, 988035, 1032720, 1053904, 1317380, 1580856, 1712594, 1976070, 2568891, 2634760, 3161712, 3425188, 3952140, 4281485, 5137782, 5269520, 6850376, 7904280, 8562970, 10275564, 12844455, 13700752, 15808560, 17125940, 20551128, 25688910, 34251880, 41102256, 51377820, 68503760, 102755640, 205511280]

約数ペア:

[(1, 205511280), (2, 102755640), (3, 68503760), (4, 51377820), (5, 41102256), (6, 34251880), (8, 25688910), (10, 20551128), (12, 17125940), (13, 15808560), (15, 13700752), (16, 12844455), (20, 10275564), (24, 8562970), (26, 7904280), (30, 6850376), (39, 5269520), (40, 5137782), (48, 4281485), (52, 3952140), (60, 3425188), (65, 3161712), (78, 2634760), (80, 2568891), (104, 1976070), (120, 1712594), (130, 1580856), (156, 1317380), (195, 1053904), (199, 1032720), (208, 988035), (240, 856297), (260, 790428), (312, 658690), (331, 620880), (390, 526952), (398, 516360), (520, 395214), (597, 344240), (624, 329345), (662, 310440), (780, 263476), (796, 258180), (993, 206960), (995, 206544), (1040, 197607), (1194, 172120), (1324, 155220), (1560, 131738), (1592, 129090), (1655, 124176), (1986, 103480), (1990, 103272), (2388, 86060), (2587, 79440), (2648, 77610), (2985, 68848), (3120, 65869), (3184, 64545), (3310, 62088), (3972, 51740), (3980, 51636), (4303, 47760), (4776, 43030), (4965, 41392), (5174, 39720), (5296, 38805), (5970, 34424), (6620, 31044), (7761, 26480), (7944, 25870), (7960, 25818), (8606, 23880), (9552, 21515), (9930, 20696), (10348, 19860), (11940, 17212), (12909, 15920), (12935, 15888), (13240, 15522)]