2019907945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{7621}}^1$

素因数の和:7777

約数の個数: 32

約数和(自身を含む): 2721968640

約数和(自身を除く): 702060695

約数列:

[1, 5, 11, 55, 61, 79, 305, 395, 671, 869, 3355, 4345, 4819, 7621, 24095, 38105, 53009, 83831, 265045, 419155, 464881, 602059, 2324405, 3010295, 5113691, 6622649, 25568455, 33113245, 36725599, 183627995, 403981589, 2019907945]

約数ペア:

[(1, 2019907945), (5, 403981589), (11, 183627995), (55, 36725599), (61, 33113245), (79, 25568455), (305, 6622649), (395, 5113691), (671, 3010295), (869, 2324405), (3355, 602059), (4345, 464881), (4819, 419155), (7621, 265045), (24095, 83831), (38105, 53009)]