18765760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{347}}^1$

素因数の和:390

約数の個数: 84

約数和(自身を含む): 48527208

約数和(自身を除く): 29761448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 320, 338, 347, 416, 520, 676, 694, 832, 845, 1040, 1352, 1388, 1690, 1735, 2080, 2704, 2776, 3380, 3470, 4160, 4511, 5408, 5552, 6760, 6940, 9022, 10816, 11104, 13520, 13880, 18044, 22208, 22555, 27040, 27760, 36088, 45110, 54080, 55520, 58643, 72176, 90220, 111040, 117286, 144352, 180440, 234572, 288704, 293215, 360880, 469144, 586430, 721760, 938288, 1172860, 1443520, 1876576, 2345720, 3753152, 4691440, 9382880, 18765760]

約数ペア:

[(1, 18765760), (2, 9382880), (4, 4691440), (5, 3753152), (8, 2345720), (10, 1876576), (13, 1443520), (16, 1172860), (20, 938288), (26, 721760), (32, 586430), (40, 469144), (52, 360880), (64, 293215), (65, 288704), (80, 234572), (104, 180440), (130, 144352), (160, 117286), (169, 111040), (208, 90220), (260, 72176), (320, 58643), (338, 55520), (347, 54080), (416, 45110), (520, 36088), (676, 27760), (694, 27040), (832, 22555), (845, 22208), (1040, 18044), (1352, 13880), (1388, 13520), (1690, 11104), (1735, 10816), (2080, 9022), (2704, 6940), (2776, 6760), (3380, 5552), (3470, 5408), (4160, 4511)]