128417080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{291857}}^1$

素因数の和:291879

約数の個数: 32

約数和(自身を含む): 315206640

約数和(自身を除く): 186789560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 291857, 583714, 1167428, 1459285, 2334856, 2918570, 3210427, 5837140, 6420854, 11674280, 12841708, 16052135, 25683416, 32104270, 64208540, 128417080]

約数ペア:

[(1, 128417080), (2, 64208540), (4, 32104270), (5, 25683416), (8, 16052135), (10, 12841708), (11, 11674280), (20, 6420854), (22, 5837140), (40, 3210427), (44, 2918570), (55, 2334856), (88, 1459285), (110, 1167428), (220, 583714), (440, 291857)]