15978040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30727}}^1$

素因数の和:30751

約数の個数: 32

約数和(自身を含む): 38717280

約数和(自身を除く): 22739240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 30727, 61454, 122908, 153635, 245816, 307270, 399451, 614540, 798902, 1229080, 1597804, 1997255, 3195608, 3994510, 7989020, 15978040]

約数ペア:

[(1, 15978040), (2, 7989020), (4, 3994510), (5, 3195608), (8, 1997255), (10, 1597804), (13, 1229080), (20, 798902), (26, 614540), (40, 399451), (52, 307270), (65, 245816), (104, 153635), (130, 122908), (260, 61454), (520, 30727)]