89661320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{320219}}^1$

素因数の和:320237

約数の個数: 32

約数和(自身を含む): 230558400

約数和(自身を除く): 140897080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 320219, 640438, 1280876, 1601095, 2241533, 2561752, 3202190, 4483066, 6404380, 8966132, 11207665, 12808760, 17932264, 22415330, 44830660, 89661320]

約数ペア:

[(1, 89661320), (2, 44830660), (4, 22415330), (5, 17932264), (7, 12808760), (8, 11207665), (10, 8966132), (14, 6404380), (20, 4483066), (28, 3202190), (35, 2561752), (40, 2241533), (56, 1601095), (70, 1280876), (140, 640438), (280, 320219)]