20154801040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{222361}}^1$

素因数の和:222488

約数の個数: 80

約数和(自身を含む): 51616446336

約数和(自身を除く): 31461645296

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 412, 440, 515, 824, 880, 1030, 1133, 1648, 2060, 2266, 4120, 4532, 5665, 8240, 9064, 11330, 18128, 22660, 45320, 90640, 222361, 444722, 889444, 1111805, 1778888, 2223610, 2445971, 3557776, 4447220, 4891942, 8894440, 9783884, 12229855, 17788880, 19567768, 22903183, 24459710, 39135536, 45806366, 48919420, 91612732, 97838840, 114515915, 183225464, 195677680, 229031830, 251935013, 366450928, 458063660, 503870026, 916127320, 1007740052, 1259675065, 1832254640, 2015480104, 2519350130, 4030960208, 5038700260, 10077400520, 20154801040]

約数ペア:

[(1, 20154801040), (2, 10077400520), (4, 5038700260), (5, 4030960208), (8, 2519350130), (10, 2015480104), (11, 1832254640), (16, 1259675065), (20, 1007740052), (22, 916127320), (40, 503870026), (44, 458063660), (55, 366450928), (80, 251935013), (88, 229031830), (103, 195677680), (110, 183225464), (176, 114515915), (206, 97838840), (220, 91612732), (412, 48919420), (440, 45806366), (515, 39135536), (824, 24459710), (880, 22903183), (1030, 19567768), (1133, 17788880), (1648, 12229855), (2060, 9783884), (2266, 8894440), (4120, 4891942), (4532, 4447220), (5665, 3557776), (8240, 2445971), (9064, 2223610), (11330, 1778888), (18128, 1111805), (22660, 889444), (45320, 444722), (90640, 222361)]