278132140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1343

約数の個数: 96

約数和(自身を含む): 695439360

約数和(自身を除く): 417307220

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 79, 110, 130, 143, 158, 220, 260, 286, 316, 395, 572, 715, 790, 869, 1027, 1231, 1430, 1580, 1738, 2054, 2462, 2860, 3476, 4108, 4345, 4924, 5135, 6155, 8690, 10270, 11297, 12310, 13541, 16003, 17380, 20540, 22594, 24620, 27082, 32006, 45188, 54164, 56485, 64012, 67705, 80015, 97249, 112970, 135410, 160030, 176033, 194498, 225940, 270820, 320060, 352066, 388996, 486245, 704132, 880165, 972490, 1069739, 1264237, 1760330, 1944980, 2139478, 2528474, 3520660, 4278956, 5056948, 5348695, 6321185, 10697390, 12642370, 13906607, 21394780, 25284740, 27813214, 55626428, 69533035, 139066070, 278132140]

約数ペア:

[(1, 278132140), (2, 139066070), (4, 69533035), (5, 55626428), (10, 27813214), (11, 25284740), (13, 21394780), (20, 13906607), (22, 12642370), (26, 10697390), (44, 6321185), (52, 5348695), (55, 5056948), (65, 4278956), (79, 3520660), (110, 2528474), (130, 2139478), (143, 1944980), (158, 1760330), (220, 1264237), (260, 1069739), (286, 972490), (316, 880165), (395, 704132), (572, 486245), (715, 388996), (790, 352066), (869, 320060), (1027, 270820), (1231, 225940), (1430, 194498), (1580, 176033), (1738, 160030), (2054, 135410), (2462, 112970), (2860, 97249), (3476, 80015), (4108, 67705), (4345, 64012), (4924, 56485), (5135, 54164), (6155, 45188), (8690, 32006), (10270, 27082), (11297, 24620), (12310, 22594), (13541, 20540), (16003, 17380)]