81366640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44221}}^1$

素因数の和:44257

約数の個数: 40

約数和(自身を含む): 197407008

約数和(自身を除く): 116040368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 44221, 88442, 176884, 221105, 353768, 442210, 707536, 884420, 1017083, 1768840, 2034166, 3537680, 4068332, 5085415, 8136664, 10170830, 16273328, 20341660, 40683320, 81366640]

約数ペア:

[(1, 81366640), (2, 40683320), (4, 20341660), (5, 16273328), (8, 10170830), (10, 8136664), (16, 5085415), (20, 4068332), (23, 3537680), (40, 2034166), (46, 1768840), (80, 1017083), (92, 884420), (115, 707536), (184, 442210), (230, 353768), (368, 221105), (460, 176884), (920, 88442), (1840, 44221)]