158203520

素因数分解:

$2^7\times 5^1\times {\mathrm{247193}}^1$

素因数の和:247212

約数の個数: 32

約数和(自身を含む): 378206820

約数和(自身を除く): 220003300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 247193, 494386, 988772, 1235965, 1977544, 2471930, 3955088, 4943860, 7910176, 9887720, 15820352, 19775440, 31640704, 39550880, 79101760, 158203520]

約数ペア:

[(1, 158203520), (2, 79101760), (4, 39550880), (5, 31640704), (8, 19775440), (10, 15820352), (16, 9887720), (20, 7910176), (32, 4943860), (40, 3955088), (64, 2471930), (80, 1977544), (128, 1235965), (160, 988772), (320, 494386), (640, 247193)]