19956375

素因数分解:

$3^7\times 5^3\times {\mathrm{73}}^1$

素因数の和:109

約数の個数: 64

約数和(自身を含む): 37864320

約数和(自身を除く): 17907945

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 73, 75, 81, 125, 135, 219, 225, 243, 365, 375, 405, 657, 675, 729, 1095, 1125, 1215, 1825, 1971, 2025, 2187, 3285, 3375, 3645, 5475, 5913, 6075, 9125, 9855, 10125, 10935, 16425, 17739, 18225, 27375, 29565, 30375, 49275, 53217, 54675, 82125, 88695, 91125, 147825, 159651, 246375, 266085, 273375, 443475, 739125, 798255, 1330425, 2217375, 3991275, 6652125, 19956375]

約数ペア:

[(1, 19956375), (3, 6652125), (5, 3991275), (9, 2217375), (15, 1330425), (25, 798255), (27, 739125), (45, 443475), (73, 273375), (75, 266085), (81, 246375), (125, 159651), (135, 147825), (219, 91125), (225, 88695), (243, 82125), (365, 54675), (375, 53217), (405, 49275), (657, 30375), (675, 29565), (729, 27375), (1095, 18225), (1125, 17739), (1215, 16425), (1825, 10935), (1971, 10125), (2025, 9855), (2187, 9125), (3285, 6075), (3375, 5913), (3645, 5475)]