155977280

素因数分解:

$2^6\times 5^1\times {\mathrm{487429}}^1$

素因数の和:487446

約数の個数: 28

約数和(自身を含む): 371421660

約数和(自身を除く): 215444380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 487429, 974858, 1949716, 2437145, 3899432, 4874290, 7798864, 9748580, 15597728, 19497160, 31195456, 38994320, 77988640, 155977280]

約数ペア:

[(1, 155977280), (2, 77988640), (4, 38994320), (5, 31195456), (8, 19497160), (10, 15597728), (16, 9748580), (20, 7798864), (32, 4874290), (40, 3899432), (64, 2437145), (80, 1949716), (160, 974858), (320, 487429)]