131455360

素因数分解:

$2^7\times 5^1\times {\mathrm{205399}}^1$

素因数の和:205418

約数の個数: 32

約数和(自身を含む): 314262000

約数和(自身を除く): 182806640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 205399, 410798, 821596, 1026995, 1643192, 2053990, 3286384, 4107980, 6572768, 8215960, 13145536, 16431920, 26291072, 32863840, 65727680, 131455360]

約数ペア:

[(1, 131455360), (2, 65727680), (4, 32863840), (5, 26291072), (8, 16431920), (10, 13145536), (16, 8215960), (20, 6572768), (32, 4107980), (40, 3286384), (64, 2053990), (80, 1643192), (128, 1026995), (160, 821596), (320, 410798), (640, 205399)]