20834784

素因数分解:

$2^5\times 3^2\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1080

約数の個数: 72

約数和(自身を含む): 60121152

約数和(自身を除く): 39286368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 73, 96, 144, 146, 219, 288, 292, 438, 584, 657, 876, 991, 1168, 1314, 1752, 1982, 2336, 2628, 2973, 3504, 3964, 5256, 5946, 7008, 7928, 8919, 10512, 11892, 15856, 17838, 21024, 23784, 31712, 35676, 47568, 71352, 72343, 95136, 142704, 144686, 217029, 285408, 289372, 434058, 578744, 651087, 868116, 1157488, 1302174, 1736232, 2314976, 2604348, 3472464, 5208696, 6944928, 10417392, 20834784]

約数ペア:

[(1, 20834784), (2, 10417392), (3, 6944928), (4, 5208696), (6, 3472464), (8, 2604348), (9, 2314976), (12, 1736232), (16, 1302174), (18, 1157488), (24, 868116), (32, 651087), (36, 578744), (48, 434058), (72, 289372), (73, 285408), (96, 217029), (144, 144686), (146, 142704), (219, 95136), (288, 72343), (292, 71352), (438, 47568), (584, 35676), (657, 31712), (876, 23784), (991, 21024), (1168, 17838), (1314, 15856), (1752, 11892), (1982, 10512), (2336, 8919), (2628, 7928), (2973, 7008), (3504, 5946), (3964, 5256)]