19280480

素因数分解:

$2^5\times 5^1\times {\mathrm{120503}}^1$

素因数の和:120518

約数の個数: 24

約数和(自身を含む): 45550512

約数和(自身を除く): 26270032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 120503, 241006, 482012, 602515, 964024, 1205030, 1928048, 2410060, 3856096, 4820120, 9640240, 19280480]

約数ペア:

[(1, 19280480), (2, 9640240), (4, 4820120), (5, 3856096), (8, 2410060), (10, 1928048), (16, 1205030), (20, 964024), (32, 602515), (40, 482012), (80, 241006), (160, 120503)]