42839725

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 54560000

約数和(自身を除く): 11720275

約数列:

[1, 5, 25, 79, 109, 199, 395, 545, 995, 1975, 2725, 4975, 8611, 15721, 21691, 43055, 78605, 108455, 215275, 393025, 542275, 1713589, 8567945, 42839725]

約数ペア:

[(1, 42839725), (5, 8567945), (25, 1713589), (79, 542275), (109, 393025), (199, 215275), (395, 108455), (545, 78605), (995, 43055), (1975, 21691), (2725, 15721), (4975, 8611)]