291427280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117511}}^1$

素因数の和:117555

約数の個数: 40

約数和(自身を含む): 699431424

約数和(自身を除く): 408004144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 117511, 235022, 470044, 587555, 940088, 1175110, 1880176, 2350220, 3642841, 4700440, 7285682, 9400880, 14571364, 18214205, 29142728, 36428410, 58285456, 72856820, 145713640, 291427280]

約数ペア:

[(1, 291427280), (2, 145713640), (4, 72856820), (5, 58285456), (8, 36428410), (10, 29142728), (16, 18214205), (20, 14571364), (31, 9400880), (40, 7285682), (62, 4700440), (80, 3642841), (124, 2350220), (155, 1880176), (248, 1175110), (310, 940088), (496, 587555), (620, 470044), (1240, 235022), (2480, 117511)]