20484856

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 46126080

約数和(自身を除く): 25641224

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 172, 181, 188, 301, 329, 344, 362, 376, 602, 658, 724, 1204, 1267, 1316, 1448, 2021, 2408, 2534, 2632, 4042, 5068, 7783, 8084, 8507, 10136, 14147, 15566, 16168, 17014, 28294, 31132, 34028, 54481, 56588, 59549, 62264, 68056, 108962, 113176, 119098, 217924, 238196, 365801, 435848, 476392, 731602, 1463204, 2560607, 2926408, 5121214, 10242428, 20484856]

約数ペア:

[(1, 20484856), (2, 10242428), (4, 5121214), (7, 2926408), (8, 2560607), (14, 1463204), (28, 731602), (43, 476392), (47, 435848), (56, 365801), (86, 238196), (94, 217924), (172, 119098), (181, 113176), (188, 108962), (301, 68056), (329, 62264), (344, 59549), (362, 56588), (376, 54481), (602, 34028), (658, 31132), (724, 28294), (1204, 17014), (1267, 16168), (1316, 15566), (1448, 14147), (2021, 10136), (2408, 8507), (2534, 8084), (2632, 7783), (4042, 5068)]