12783220

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1931}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 26939808

約数和(自身を除く): 14156588

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 1931, 3310, 3862, 6620, 7724, 9655, 19310, 38620, 639161, 1278322, 2556644, 3195805, 6391610, 12783220]

約数ペア:

[(1, 12783220), (2, 6391610), (4, 3195805), (5, 2556644), (10, 1278322), (20, 639161), (331, 38620), (662, 19310), (1324, 9655), (1655, 7724), (1931, 6620), (3310, 3862)]