20315372

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24681748

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 929, 994, 1562, 1858, 1988, 3124, 3716, 5467, 6503, 10219, 10934, 13006, 20438, 21868, 26012, 40876, 65959, 71533, 131918, 143066, 263836, 286132, 461713, 725549, 923426, 1451098, 1846852, 2902196, 5078843, 10157686, 20315372]

約数ペア:

[(1, 20315372), (2, 10157686), (4, 5078843), (7, 2902196), (11, 1846852), (14, 1451098), (22, 923426), (28, 725549), (44, 461713), (71, 286132), (77, 263836), (142, 143066), (154, 131918), (284, 71533), (308, 65959), (497, 40876), (781, 26012), (929, 21868), (994, 20438), (1562, 13006), (1858, 10934), (1988, 10219), (3124, 6503), (3716, 5467)]