385002280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^4\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 941225220

約数和(自身を除く): 556222940

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 337, 338, 520, 674, 676, 845, 1348, 1352, 1685, 1690, 2197, 2696, 3370, 3380, 4381, 4394, 6740, 6760, 8762, 8788, 10985, 13480, 17524, 17576, 21905, 21970, 28561, 35048, 43810, 43940, 56953, 57122, 87620, 87880, 113906, 114244, 142805, 175240, 227812, 228488, 284765, 285610, 455624, 569530, 571220, 740389, 1139060, 1142440, 1480778, 2278120, 2961556, 3701945, 5923112, 7403890, 9625057, 14807780, 19250114, 29615560, 38500228, 48125285, 77000456, 96250570, 192501140, 385002280]

約数ペア:

[(1, 385002280), (2, 192501140), (4, 96250570), (5, 77000456), (8, 48125285), (10, 38500228), (13, 29615560), (20, 19250114), (26, 14807780), (40, 9625057), (52, 7403890), (65, 5923112), (104, 3701945), (130, 2961556), (169, 2278120), (260, 1480778), (337, 1142440), (338, 1139060), (520, 740389), (674, 571220), (676, 569530), (845, 455624), (1348, 285610), (1352, 284765), (1685, 228488), (1690, 227812), (2197, 175240), (2696, 142805), (3370, 114244), (3380, 113906), (4381, 87880), (4394, 87620), (6740, 57122), (6760, 56953), (8762, 43940), (8788, 43810), (10985, 35048), (13480, 28561), (17524, 21970), (17576, 21905)]