40666780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{26407}}^1$

素因数の和:26434

約数の個数: 48

約数和(自身を含む): 106477056

約数和(自身を除く): 65810276

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, 26407, 52814, 105628, 132035, 184849, 264070, 290477, 369698, 528140, 580954, 739396, 924245, 1161908, 1452385, 1848490, 2033339, 2904770, 3696980, 4066678, 5809540, 8133356, 10166695, 20333390, 40666780]

約数ペア:

[(1, 40666780), (2, 20333390), (4, 10166695), (5, 8133356), (7, 5809540), (10, 4066678), (11, 3696980), (14, 2904770), (20, 2033339), (22, 1848490), (28, 1452385), (35, 1161908), (44, 924245), (55, 739396), (70, 580954), (77, 528140), (110, 369698), (140, 290477), (154, 264070), (220, 184849), (308, 132035), (385, 105628), (770, 52814), (1540, 26407)]