28440560

素因数分解:

$2^4\times 5^1\times {\mathrm{355507}}^1$

素因数の和:355520

約数の個数: 20

約数和(自身を含む): 66124488

約数和(自身を除く): 37683928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355507, 711014, 1422028, 1777535, 2844056, 3555070, 5688112, 7110140, 14220280, 28440560]

約数ペア:

[(1, 28440560), (2, 14220280), (4, 7110140), (5, 5688112), (8, 3555070), (10, 2844056), (16, 1777535), (20, 1422028), (40, 711014), (80, 355507)]