19990806540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1\times {\mathrm{15473}}^1$

素因数の和:15899

約数の個数: 96

約数和(自身を含む): 57056723136

約数和(自身を除く): 37065916596

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 353, 366, 610, 706, 732, 915, 1059, 1220, 1412, 1765, 1830, 2118, 3530, 3660, 4236, 5295, 7060, 10590, 15473, 21180, 21533, 30946, 43066, 46419, 61892, 64599, 77365, 86132, 92838, 107665, 129198, 154730, 185676, 215330, 232095, 258396, 309460, 322995, 430660, 464190, 645990, 928380, 943853, 1291980, 1887706, 2831559, 3775412, 4719265, 5461969, 5663118, 9438530, 10923938, 11326236, 14157795, 16385907, 18877060, 21847876, 27309845, 28315590, 32771814, 54619690, 56631180, 65543628, 81929535, 109239380, 163859070, 327718140, 333180109, 666360218, 999540327, 1332720436, 1665900545, 1999080654, 3331801090, 3998161308, 4997701635, 6663602180, 9995403270, 19990806540]

約数ペア:

[(1, 19990806540), (2, 9995403270), (3, 6663602180), (4, 4997701635), (5, 3998161308), (6, 3331801090), (10, 1999080654), (12, 1665900545), (15, 1332720436), (20, 999540327), (30, 666360218), (60, 333180109), (61, 327718140), (122, 163859070), (183, 109239380), (244, 81929535), (305, 65543628), (353, 56631180), (366, 54619690), (610, 32771814), (706, 28315590), (732, 27309845), (915, 21847876), (1059, 18877060), (1220, 16385907), (1412, 14157795), (1765, 11326236), (1830, 10923938), (2118, 9438530), (3530, 5663118), (3660, 5461969), (4236, 4719265), (5295, 3775412), (7060, 2831559), (10590, 1887706), (15473, 1291980), (21180, 943853), (21533, 928380), (30946, 645990), (43066, 464190), (46419, 430660), (61892, 322995), (64599, 309460), (77365, 258396), (86132, 232095), (92838, 215330), (107665, 185676), (129198, 154730)]