263785940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:569

約数の個数: 96

約数和(自身を含む): 644692608

約数和(自身を除く): 380906668

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 251, 281, 340, 374, 502, 562, 748, 935, 1004, 1124, 1255, 1405, 1870, 2510, 2761, 2810, 3091, 3740, 4267, 4777, 5020, 5522, 5620, 6182, 8534, 9554, 11044, 12364, 13805, 15455, 17068, 19108, 21335, 23885, 27610, 30910, 42670, 46937, 47770, 52547, 55220, 61820, 70531, 85340, 93874, 95540, 105094, 141062, 187748, 210188, 234685, 262735, 282124, 352655, 469370, 525470, 705310, 775841, 938740, 1050940, 1199027, 1410620, 1551682, 2398054, 3103364, 3879205, 4796108, 5995135, 7758410, 11990270, 13189297, 15516820, 23980540, 26378594, 52757188, 65946485, 131892970, 263785940]

約数ペア:

[(1, 263785940), (2, 131892970), (4, 65946485), (5, 52757188), (10, 26378594), (11, 23980540), (17, 15516820), (20, 13189297), (22, 11990270), (34, 7758410), (44, 5995135), (55, 4796108), (68, 3879205), (85, 3103364), (110, 2398054), (170, 1551682), (187, 1410620), (220, 1199027), (251, 1050940), (281, 938740), (340, 775841), (374, 705310), (502, 525470), (562, 469370), (748, 352655), (935, 282124), (1004, 262735), (1124, 234685), (1255, 210188), (1405, 187748), (1870, 141062), (2510, 105094), (2761, 95540), (2810, 93874), (3091, 85340), (3740, 70531), (4267, 61820), (4777, 55220), (5020, 52547), (5522, 47770), (5620, 46937), (6182, 42670), (8534, 30910), (9554, 27610), (11044, 23885), (12364, 21335), (13805, 19108), (15455, 17068)]