319421320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{48991}}^1$

素因数の和:49165

約数の個数: 32

約数和(自身を含む): 723121920

約数和(自身を除く): 403700600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 48991, 97982, 195964, 244955, 391928, 489910, 979820, 1959640, 7985533, 15971066, 31942132, 39927665, 63884264, 79855330, 159710660, 319421320]

約数ペア:

[(1, 319421320), (2, 159710660), (4, 79855330), (5, 63884264), (8, 39927665), (10, 31942132), (20, 15971066), (40, 7985533), (163, 1959640), (326, 979820), (652, 489910), (815, 391928), (1304, 244955), (1630, 195964), (3260, 97982), (6520, 48991)]