28590716

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 64638000

約数和(自身を除く): 36047284

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 89, 98, 149, 154, 178, 196, 298, 308, 356, 539, 596, 623, 979, 1043, 1078, 1246, 1639, 1958, 2086, 2156, 2492, 3278, 3916, 4172, 4361, 6556, 6853, 7301, 8722, 11473, 13261, 13706, 14602, 17444, 22946, 26522, 27412, 29204, 45892, 47971, 53044, 80311, 92827, 95942, 145871, 160622, 185654, 191884, 291742, 321244, 371308, 583484, 649789, 1021097, 1299578, 2042194, 2599156, 4084388, 7147679, 14295358, 28590716]

約数ペア:

[(1, 28590716), (2, 14295358), (4, 7147679), (7, 4084388), (11, 2599156), (14, 2042194), (22, 1299578), (28, 1021097), (44, 649789), (49, 583484), (77, 371308), (89, 321244), (98, 291742), (149, 191884), (154, 185654), (178, 160622), (196, 145871), (298, 95942), (308, 92827), (356, 80311), (539, 53044), (596, 47971), (623, 45892), (979, 29204), (1043, 27412), (1078, 26522), (1246, 22946), (1639, 17444), (1958, 14602), (2086, 13706), (2156, 13261), (2492, 11473), (3278, 8722), (3916, 7301), (4172, 6853), (4361, 6556)]