131538160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1601}}^1$

素因数の和:1706

約数の個数: 80

約数和(自身を含む): 333728640

約数和(自身を除く): 202190480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 1027, 1040, 1264, 1580, 1601, 2054, 3160, 3202, 4108, 5135, 6320, 6404, 8005, 8216, 10270, 12808, 16010, 16432, 20540, 20813, 25616, 32020, 41080, 41626, 64040, 82160, 83252, 104065, 126479, 128080, 166504, 208130, 252958, 333008, 416260, 505916, 632395, 832520, 1011832, 1264790, 1644227, 1665040, 2023664, 2529580, 3288454, 5059160, 6576908, 8221135, 10118320, 13153816, 16442270, 26307632, 32884540, 65769080, 131538160]

約数ペア:

[(1, 131538160), (2, 65769080), (4, 32884540), (5, 26307632), (8, 16442270), (10, 13153816), (13, 10118320), (16, 8221135), (20, 6576908), (26, 5059160), (40, 3288454), (52, 2529580), (65, 2023664), (79, 1665040), (80, 1644227), (104, 1264790), (130, 1011832), (158, 832520), (208, 632395), (260, 505916), (316, 416260), (395, 333008), (520, 252958), (632, 208130), (790, 166504), (1027, 128080), (1040, 126479), (1264, 104065), (1580, 83252), (1601, 82160), (2054, 64040), (3160, 41626), (3202, 41080), (4108, 32020), (5135, 25616), (6320, 20813), (6404, 20540), (8005, 16432), (8216, 16010), (10270, 12808)]