81664580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1367}}^1$

素因数の和:1508

約数の個数: 48

約数和(自身を含む): 179262720

約数和(自身を除く): 97598140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 103, 116, 145, 206, 290, 412, 515, 580, 1030, 1367, 2060, 2734, 2987, 5468, 5974, 6835, 11948, 13670, 14935, 27340, 29870, 39643, 59740, 79286, 140801, 158572, 198215, 281602, 396430, 563204, 704005, 792860, 1408010, 2816020, 4083229, 8166458, 16332916, 20416145, 40832290, 81664580]

約数ペア:

[(1, 81664580), (2, 40832290), (4, 20416145), (5, 16332916), (10, 8166458), (20, 4083229), (29, 2816020), (58, 1408010), (103, 792860), (116, 704005), (145, 563204), (206, 396430), (290, 281602), (412, 198215), (515, 158572), (580, 140801), (1030, 79286), (1367, 59740), (2060, 39643), (2734, 29870), (2987, 27340), (5468, 14935), (5974, 13670), (6835, 11948)]