20187618275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{8923}}^1$

素因数の和:9396

約数の個数: 48

約数和(自身を含む): 28815239040

約数和(自身を除く): 8627620765

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 433, 475, 1045, 2165, 4763, 5225, 8227, 8923, 10825, 23815, 41135, 44615, 90497, 98153, 119075, 169537, 205675, 223075, 452485, 490765, 847685, 1864907, 2262425, 2453825, 3863659, 4238425, 9324535, 19318295, 42500249, 46622675, 73409521, 96591475, 212501245, 367047605, 807504731, 1062506225, 1835238025, 4037523655, 20187618275]

約数ペア:

[(1, 20187618275), (5, 4037523655), (11, 1835238025), (19, 1062506225), (25, 807504731), (55, 367047605), (95, 212501245), (209, 96591475), (275, 73409521), (433, 46622675), (475, 42500249), (1045, 19318295), (2165, 9324535), (4763, 4238425), (5225, 3863659), (8227, 2453825), (8923, 2262425), (10825, 1864907), (23815, 847685), (41135, 490765), (44615, 452485), (90497, 223075), (98153, 205675), (119075, 169537)]