72780519

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{853}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 118056960

約数和(自身を除く): 45276441

約数列:

[1, 3, 7, 17, 21, 51, 119, 239, 357, 717, 853, 1673, 2559, 4063, 5019, 5971, 12189, 14501, 17913, 28441, 43503, 85323, 101507, 203867, 304521, 611601, 1427069, 3465739, 4281207, 10397217, 24260173, 72780519]

約数ペア:

[(1, 72780519), (3, 24260173), (7, 10397217), (17, 4281207), (21, 3465739), (51, 1427069), (119, 611601), (239, 304521), (357, 203867), (717, 101507), (853, 85323), (1673, 43503), (2559, 28441), (4063, 17913), (5019, 14501), (5971, 12189)]