20047405

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 28514304

約数和(自身を除く): 8466899

約数列:

[1, 5, 7, 35, 67, 83, 103, 335, 415, 469, 515, 581, 721, 2345, 2905, 3605, 5561, 6901, 8549, 27805, 34505, 38927, 42745, 48307, 59843, 194635, 241535, 299215, 572783, 2863915, 4009481, 20047405]

約数ペア:

[(1, 20047405), (5, 4009481), (7, 2863915), (35, 572783), (67, 299215), (83, 241535), (103, 194635), (335, 59843), (415, 48307), (469, 42745), (515, 38927), (581, 34505), (721, 27805), (2345, 8549), (2905, 6901), (3605, 5561)]