51605840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{347}}^1$

素因数の和:397

約数の個数: 120

約数和(自身を含む): 142142688

約数和(自身を除く): 90536848

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 169, 176, 208, 220, 260, 286, 338, 347, 440, 520, 572, 676, 694, 715, 845, 880, 1040, 1144, 1352, 1388, 1430, 1690, 1735, 1859, 2288, 2704, 2776, 2860, 3380, 3470, 3718, 3817, 4511, 5552, 5720, 6760, 6940, 7436, 7634, 9022, 9295, 11440, 13520, 13880, 14872, 15268, 18044, 18590, 19085, 22555, 27760, 29744, 30536, 36088, 37180, 38170, 45110, 49621, 58643, 61072, 72176, 74360, 76340, 90220, 99242, 117286, 148720, 152680, 180440, 198484, 234572, 248105, 293215, 305360, 360880, 396968, 469144, 496210, 586430, 645073, 793936, 938288, 992420, 1172860, 1290146, 1984840, 2345720, 2580292, 3225365, 3969680, 4691440, 5160584, 6450730, 10321168, 12901460, 25802920, 51605840]

約数ペア:

[(1, 51605840), (2, 25802920), (4, 12901460), (5, 10321168), (8, 6450730), (10, 5160584), (11, 4691440), (13, 3969680), (16, 3225365), (20, 2580292), (22, 2345720), (26, 1984840), (40, 1290146), (44, 1172860), (52, 992420), (55, 938288), (65, 793936), (80, 645073), (88, 586430), (104, 496210), (110, 469144), (130, 396968), (143, 360880), (169, 305360), (176, 293215), (208, 248105), (220, 234572), (260, 198484), (286, 180440), (338, 152680), (347, 148720), (440, 117286), (520, 99242), (572, 90220), (676, 76340), (694, 74360), (715, 72176), (845, 61072), (880, 58643), (1040, 49621), (1144, 45110), (1352, 38170), (1388, 37180), (1430, 36088), (1690, 30536), (1735, 29744), (1859, 27760), (2288, 22555), (2704, 19085), (2776, 18590), (2860, 18044), (3380, 15268), (3470, 14872), (3718, 13880), (3817, 13520), (4511, 11440), (5552, 9295), (5720, 9022), (6760, 7634), (6940, 7436)]