6461320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{991}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 14641920

約数和(自身を除く): 8180600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 991, 1304, 1630, 1982, 3260, 3964, 4955, 6520, 7928, 9910, 19820, 39640, 161533, 323066, 646132, 807665, 1292264, 1615330, 3230660, 6461320]

約数ペア:

[(1, 6461320), (2, 3230660), (4, 1615330), (5, 1292264), (8, 807665), (10, 646132), (20, 323066), (40, 161533), (163, 39640), (326, 19820), (652, 9910), (815, 7928), (991, 6520), (1304, 4955), (1630, 3964), (1982, 3260)]