19006719920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{19447}}^1$

素因数の和:20122

約数の個数: 80

約数和(自身を含む): 46591184640

約数和(自身を除く): 27584464720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 643, 760, 1286, 1520, 2572, 3215, 5144, 6430, 10288, 12217, 12860, 19447, 24434, 25720, 38894, 48868, 51440, 61085, 77788, 97235, 97736, 122170, 155576, 194470, 195472, 244340, 311152, 369493, 388940, 488680, 738986, 777880, 977360, 1477972, 1555760, 1847465, 2955944, 3694930, 5911888, 7389860, 12504421, 14779720, 25008842, 29559440, 50017684, 62522105, 100035368, 125044210, 200070736, 237583999, 250088420, 475167998, 500176840, 950335996, 1000353680, 1187919995, 1900671992, 2375839990, 3801343984, 4751679980, 9503359960, 19006719920]

約数ペア:

[(1, 19006719920), (2, 9503359960), (4, 4751679980), (5, 3801343984), (8, 2375839990), (10, 1900671992), (16, 1187919995), (19, 1000353680), (20, 950335996), (38, 500176840), (40, 475167998), (76, 250088420), (80, 237583999), (95, 200070736), (152, 125044210), (190, 100035368), (304, 62522105), (380, 50017684), (643, 29559440), (760, 25008842), (1286, 14779720), (1520, 12504421), (2572, 7389860), (3215, 5911888), (5144, 3694930), (6430, 2955944), (10288, 1847465), (12217, 1555760), (12860, 1477972), (19447, 977360), (24434, 777880), (25720, 738986), (38894, 488680), (48868, 388940), (51440, 369493), (61085, 311152), (77788, 244340), (97235, 195472), (97736, 194470), (122170, 155576)]