20195560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37865240

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 79, 83, 88, 110, 140, 154, 158, 166, 220, 280, 308, 316, 332, 385, 395, 415, 440, 553, 581, 616, 632, 664, 770, 790, 830, 869, 913, 1106, 1162, 1540, 1580, 1660, 1738, 1826, 2212, 2324, 2765, 2905, 3080, 3160, 3320, 3476, 3652, 4345, 4424, 4565, 4648, 5530, 5810, 6083, 6391, 6557, 6952, 7304, 8690, 9130, 11060, 11620, 12166, 12782, 13114, 17380, 18260, 22120, 23240, 24332, 25564, 26228, 30415, 31955, 32785, 34760, 36520, 45899, 48664, 51128, 52456, 60830, 63910, 65570, 72127, 91798, 121660, 127820, 131140, 144254, 183596, 229495, 243320, 255640, 262280, 288508, 360635, 367192, 458990, 504889, 577016, 721270, 917980, 1009778, 1442540, 1835960, 2019556, 2524445, 2885080, 4039112, 5048890, 10097780, 20195560]

約数ペア:

[(1, 20195560), (2, 10097780), (4, 5048890), (5, 4039112), (7, 2885080), (8, 2524445), (10, 2019556), (11, 1835960), (14, 1442540), (20, 1009778), (22, 917980), (28, 721270), (35, 577016), (40, 504889), (44, 458990), (55, 367192), (56, 360635), (70, 288508), (77, 262280), (79, 255640), (83, 243320), (88, 229495), (110, 183596), (140, 144254), (154, 131140), (158, 127820), (166, 121660), (220, 91798), (280, 72127), (308, 65570), (316, 63910), (332, 60830), (385, 52456), (395, 51128), (415, 48664), (440, 45899), (553, 36520), (581, 34760), (616, 32785), (632, 31955), (664, 30415), (770, 26228), (790, 25564), (830, 24332), (869, 23240), (913, 22120), (1106, 18260), (1162, 17380), (1540, 13114), (1580, 12782), (1660, 12166), (1738, 11620), (1826, 11060), (2212, 9130), (2324, 8690), (2765, 7304), (2905, 6952), (3080, 6557), (3160, 6391), (3320, 6083), (3476, 5810), (3652, 5530), (4345, 4648), (4424, 4565)]