26159980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16987}}^1$

素因数の和:17014

約数の個数: 48

約数和(自身を含む): 68495616

約数和(自身を除く): 42335636

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, 16987, 33974, 67948, 84935, 118909, 169870, 186857, 237818, 339740, 373714, 475636, 594545, 747428, 934285, 1189090, 1307999, 1868570, 2378180, 2615998, 3737140, 5231996, 6539995, 13079990, 26159980]

約数ペア:

[(1, 26159980), (2, 13079990), (4, 6539995), (5, 5231996), (7, 3737140), (10, 2615998), (11, 2378180), (14, 1868570), (20, 1307999), (22, 1189090), (28, 934285), (35, 747428), (44, 594545), (55, 475636), (70, 373714), (77, 339740), (110, 237818), (140, 186857), (154, 169870), (220, 118909), (308, 84935), (385, 67948), (770, 33974), (1540, 16987)]