28734992

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:712

約数の個数: 80

約数和(自身を含む): 68953920

約数和(自身を除く): 40218928

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 247, 286, 304, 418, 494, 572, 661, 836, 988, 1144, 1322, 1672, 1976, 2288, 2644, 2717, 3344, 3952, 5288, 5434, 7271, 8593, 10576, 10868, 12559, 14542, 17186, 21736, 25118, 29084, 34372, 43472, 50236, 58168, 68744, 94523, 100472, 116336, 137488, 138149, 163267, 189046, 200944, 276298, 326534, 378092, 552596, 653068, 756184, 1105192, 1306136, 1512368, 1795937, 2210384, 2612272, 3591874, 7183748, 14367496, 28734992]

約数ペア:

[(1, 28734992), (2, 14367496), (4, 7183748), (8, 3591874), (11, 2612272), (13, 2210384), (16, 1795937), (19, 1512368), (22, 1306136), (26, 1105192), (38, 756184), (44, 653068), (52, 552596), (76, 378092), (88, 326534), (104, 276298), (143, 200944), (152, 189046), (176, 163267), (208, 138149), (209, 137488), (247, 116336), (286, 100472), (304, 94523), (418, 68744), (494, 58168), (572, 50236), (661, 43472), (836, 34372), (988, 29084), (1144, 25118), (1322, 21736), (1672, 17186), (1976, 14542), (2288, 12559), (2644, 10868), (2717, 10576), (3344, 8593), (3952, 7271), (5288, 5434)]