20926780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 53738496

約数和(自身を除く): 32811716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 67, 70, 92, 97, 115, 134, 140, 161, 194, 230, 268, 322, 335, 388, 460, 469, 485, 644, 670, 679, 805, 938, 970, 1340, 1358, 1541, 1610, 1876, 1940, 2231, 2345, 2716, 3082, 3220, 3395, 4462, 4690, 6164, 6499, 6790, 7705, 8924, 9380, 10787, 11155, 12998, 13580, 15410, 15617, 21574, 22310, 25996, 30820, 31234, 32495, 43148, 44620, 45493, 53935, 62468, 64990, 78085, 90986, 107870, 129980, 149477, 156170, 181972, 215740, 227465, 298954, 312340, 454930, 597908, 747385, 909860, 1046339, 1494770, 2092678, 2989540, 4185356, 5231695, 10463390, 20926780]

約数ペア:

[(1, 20926780), (2, 10463390), (4, 5231695), (5, 4185356), (7, 2989540), (10, 2092678), (14, 1494770), (20, 1046339), (23, 909860), (28, 747385), (35, 597908), (46, 454930), (67, 312340), (70, 298954), (92, 227465), (97, 215740), (115, 181972), (134, 156170), (140, 149477), (161, 129980), (194, 107870), (230, 90986), (268, 78085), (322, 64990), (335, 62468), (388, 53935), (460, 45493), (469, 44620), (485, 43148), (644, 32495), (670, 31234), (679, 30820), (805, 25996), (938, 22310), (970, 21574), (1340, 15617), (1358, 15410), (1541, 13580), (1610, 12998), (1876, 11155), (1940, 10787), (2231, 9380), (2345, 8924), (2716, 7705), (3082, 6790), (3220, 6499), (3395, 6164), (4462, 4690)]