20304170

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2126

約数の個数: 32

約数和(自身を含む): 39042432

約数和(自身を除く): 18738262

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 2053, 4106, 4945, 9890, 10265, 20530, 47219, 88279, 94438, 176558, 236095, 441395, 472190, 882790, 2030417, 4060834, 10152085, 20304170]

約数ペア:

[(1, 20304170), (2, 10152085), (5, 4060834), (10, 2030417), (23, 882790), (43, 472190), (46, 441395), (86, 236095), (115, 176558), (215, 94438), (230, 88279), (430, 47219), (989, 20530), (1978, 10265), (2053, 9890), (4106, 4945)]