20162495750

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{81547}}^1$

素因数の和:81630

約数の個数: 64

約数和(自身を含む): 40301673984

約数和(自身を除く): 20139178234

約数列:

[1, 2, 5, 10, 23, 25, 43, 46, 50, 86, 115, 125, 215, 230, 250, 430, 575, 989, 1075, 1150, 1978, 2150, 2875, 4945, 5375, 5750, 9890, 10750, 24725, 49450, 81547, 123625, 163094, 247250, 407735, 815470, 1875581, 2038675, 3506521, 3751162, 4077350, 7013042, 9377905, 10193375, 17532605, 18755810, 20386750, 35065210, 46889525, 80649983, 87663025, 93779050, 161299966, 175326050, 234447625, 403249915, 438315125, 468895250, 806499830, 876630250, 2016249575, 4032499150, 10081247875, 20162495750]

約数ペア:

[(1, 20162495750), (2, 10081247875), (5, 4032499150), (10, 2016249575), (23, 876630250), (25, 806499830), (43, 468895250), (46, 438315125), (50, 403249915), (86, 234447625), (115, 175326050), (125, 161299966), (215, 93779050), (230, 87663025), (250, 80649983), (430, 46889525), (575, 35065210), (989, 20386750), (1075, 18755810), (1150, 17532605), (1978, 10193375), (2150, 9377905), (2875, 7013042), (4945, 4077350), (5375, 3751162), (5750, 3506521), (9890, 2038675), (10750, 1875581), (24725, 815470), (49450, 407735), (81547, 247250), (123625, 163094)]