289345520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157253}}^1$

素因数の和:157289

約数の個数: 40

約数和(自身を含む): 701981856

約数和(自身を除く): 412636336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 157253, 314506, 629012, 786265, 1258024, 1572530, 2516048, 3145060, 3616819, 6290120, 7233638, 12580240, 14467276, 18084095, 28934552, 36168190, 57869104, 72336380, 144672760, 289345520]

約数ペア:

[(1, 289345520), (2, 144672760), (4, 72336380), (5, 57869104), (8, 36168190), (10, 28934552), (16, 18084095), (20, 14467276), (23, 12580240), (40, 7233638), (46, 6290120), (80, 3616819), (92, 3145060), (115, 2516048), (184, 1572530), (230, 1258024), (368, 786265), (460, 629012), (920, 314506), (1840, 157253)]