20689512

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1013}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 55486080

約数和(自身を除く): 34796568

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 37, 46, 69, 74, 92, 111, 138, 148, 184, 222, 276, 296, 444, 552, 851, 888, 1013, 1702, 2026, 2553, 3039, 3404, 4052, 5106, 6078, 6808, 8104, 10212, 12156, 20424, 23299, 24312, 37481, 46598, 69897, 74962, 93196, 112443, 139794, 149924, 186392, 224886, 279588, 299848, 449772, 559176, 862063, 899544, 1724126, 2586189, 3448252, 5172378, 6896504, 10344756, 20689512]

約数ペア:

[(1, 20689512), (2, 10344756), (3, 6896504), (4, 5172378), (6, 3448252), (8, 2586189), (12, 1724126), (23, 899544), (24, 862063), (37, 559176), (46, 449772), (69, 299848), (74, 279588), (92, 224886), (111, 186392), (138, 149924), (148, 139794), (184, 112443), (222, 93196), (276, 74962), (296, 69897), (444, 46598), (552, 37481), (851, 24312), (888, 23299), (1013, 20424), (1702, 12156), (2026, 10212), (2553, 8104), (3039, 6808), (3404, 6078), (4052, 5106)]