20285188

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{983}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 44964864

約数和(自身を除く): 24679676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 67, 77, 134, 154, 268, 308, 469, 737, 938, 983, 1474, 1876, 1966, 2948, 3932, 5159, 6881, 10318, 10813, 13762, 20636, 21626, 27524, 43252, 65861, 75691, 131722, 151382, 263444, 302764, 461027, 724471, 922054, 1448942, 1844108, 2897884, 5071297, 10142594, 20285188]

約数ペア:

[(1, 20285188), (2, 10142594), (4, 5071297), (7, 2897884), (11, 1844108), (14, 1448942), (22, 922054), (28, 724471), (44, 461027), (67, 302764), (77, 263444), (134, 151382), (154, 131722), (268, 75691), (308, 65861), (469, 43252), (737, 27524), (938, 21626), (983, 20636), (1474, 13762), (1876, 10813), (1966, 10318), (2948, 6881), (3932, 5159)]