1265665940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{821861}}^1$

素因数の和:821888

約数の個数: 48

約数和(自身を含む): 3313747584

約数和(自身を除く): 2048081644

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 821861, 1643722, 3287444, 4109305, 5753027, 8218610, 9040471, 11506054, 16437220, 18080942, 23012108, 28765135, 36161884, 45202355, 57530270, 63283297, 90404710, 115060540, 126566594, 180809420, 253133188, 316416485, 632832970, 1265665940]

約数ペア:

[(1, 1265665940), (2, 632832970), (4, 316416485), (5, 253133188), (7, 180809420), (10, 126566594), (11, 115060540), (14, 90404710), (20, 63283297), (22, 57530270), (28, 45202355), (35, 36161884), (44, 28765135), (55, 23012108), (70, 18080942), (77, 16437220), (110, 11506054), (140, 9040471), (154, 8218610), (220, 5753027), (308, 4109305), (385, 3287444), (770, 1643722), (1540, 821861)]