20764172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1171}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 44104704

約数和(自身を除く): 23340532

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 286, 341, 403, 572, 682, 806, 1171, 1364, 1612, 2342, 4433, 4684, 8866, 12881, 15223, 17732, 25762, 30446, 36301, 51524, 60892, 72602, 145204, 167453, 334906, 399311, 471913, 669812, 798622, 943826, 1597244, 1887652, 5191043, 10382086, 20764172]

約数ペア:

[(1, 20764172), (2, 10382086), (4, 5191043), (11, 1887652), (13, 1597244), (22, 943826), (26, 798622), (31, 669812), (44, 471913), (52, 399311), (62, 334906), (124, 167453), (143, 145204), (286, 72602), (341, 60892), (403, 51524), (572, 36301), (682, 30446), (806, 25762), (1171, 17732), (1364, 15223), (1612, 12881), (2342, 8866), (4433, 4684)]