1388572420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{23197}}^1$

素因数の和:23320

約数の個数: 48

約数和(自身を含む): 3028174128

約数和(自身を除く): 1639601708

約数列:

[1, 2, 4, 5, 10, 20, 41, 73, 82, 146, 164, 205, 292, 365, 410, 730, 820, 1460, 2993, 5986, 11972, 14965, 23197, 29930, 46394, 59860, 92788, 115985, 231970, 463940, 951077, 1693381, 1902154, 3386762, 3804308, 4755385, 6773524, 8466905, 9510770, 16933810, 19021540, 33867620, 69428621, 138857242, 277714484, 347143105, 694286210, 1388572420]

約数ペア:

[(1, 1388572420), (2, 694286210), (4, 347143105), (5, 277714484), (10, 138857242), (20, 69428621), (41, 33867620), (73, 19021540), (82, 16933810), (146, 9510770), (164, 8466905), (205, 6773524), (292, 4755385), (365, 3804308), (410, 3386762), (730, 1902154), (820, 1693381), (1460, 951077), (2993, 463940), (5986, 231970), (11972, 115985), (14965, 92788), (23197, 59860), (29930, 46394)]