128803160

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{12829}}^1$

素因数の和:13091

約数の個数: 32

約数和(自身を含む): 290984400

約数和(自身を除く): 162181240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 12829, 25658, 51316, 64145, 102632, 128290, 256580, 513160, 3220079, 6440158, 12880316, 16100395, 25760632, 32200790, 64401580, 128803160]

約数ペア:

[(1, 128803160), (2, 64401580), (4, 32200790), (5, 25760632), (8, 16100395), (10, 12880316), (20, 6440158), (40, 3220079), (251, 513160), (502, 256580), (1004, 128290), (1255, 102632), (2008, 64145), (2510, 51316), (5020, 25658), (10040, 12829)]