20559616

素因数分解:

$2^8\times 7^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1$

素因数の和:190

約数の個数: 108

約数和(自身を含む): 52428600

約数和(自身を除く): 31868984

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 128, 149, 154, 176, 196, 224, 256, 298, 308, 352, 392, 448, 539, 596, 616, 704, 784, 896, 1043, 1078, 1192, 1232, 1408, 1568, 1639, 1792, 2086, 2156, 2384, 2464, 2816, 3136, 3278, 4172, 4312, 4768, 4928, 6272, 6556, 7301, 8344, 8624, 9536, 9856, 11473, 12544, 13112, 14602, 16688, 17248, 19072, 19712, 22946, 26224, 29204, 33376, 34496, 38144, 45892, 52448, 58408, 66752, 68992, 80311, 91784, 104896, 116816, 133504, 137984, 160622, 183568, 209792, 233632, 267008, 321244, 367136, 419584, 467264, 642488, 734272, 934528, 1284976, 1468544, 1869056, 2569952, 2937088, 5139904, 10279808, 20559616]

約数ペア:

[(1, 20559616), (2, 10279808), (4, 5139904), (7, 2937088), (8, 2569952), (11, 1869056), (14, 1468544), (16, 1284976), (22, 934528), (28, 734272), (32, 642488), (44, 467264), (49, 419584), (56, 367136), (64, 321244), (77, 267008), (88, 233632), (98, 209792), (112, 183568), (128, 160622), (149, 137984), (154, 133504), (176, 116816), (196, 104896), (224, 91784), (256, 80311), (298, 68992), (308, 66752), (352, 58408), (392, 52448), (448, 45892), (539, 38144), (596, 34496), (616, 33376), (704, 29204), (784, 26224), (896, 22946), (1043, 19712), (1078, 19072), (1192, 17248), (1232, 16688), (1408, 14602), (1568, 13112), (1639, 12544), (1792, 11473), (2086, 9856), (2156, 9536), (2384, 8624), (2464, 8344), (2816, 7301), (3136, 6556), (3278, 6272), (4172, 4928), (4312, 4768)]