20656272

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4729}}^1$

素因数の和:4760

約数の個数: 80

約数和(自身を含む): 65690240

約数和(自身を除く): 45033968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 182, 208, 273, 312, 336, 364, 546, 624, 728, 1092, 1456, 2184, 4368, 4729, 9458, 14187, 18916, 28374, 33103, 37832, 56748, 61477, 66206, 75664, 99309, 113496, 122954, 132412, 184431, 198618, 226992, 245908, 264824, 368862, 397236, 430339, 491816, 529648, 737724, 794472, 860678, 983632, 1291017, 1475448, 1588944, 1721356, 2582034, 2950896, 3442712, 5164068, 6885424, 10328136, 20656272]

約数ペア:

[(1, 20656272), (2, 10328136), (3, 6885424), (4, 5164068), (6, 3442712), (7, 2950896), (8, 2582034), (12, 1721356), (13, 1588944), (14, 1475448), (16, 1291017), (21, 983632), (24, 860678), (26, 794472), (28, 737724), (39, 529648), (42, 491816), (48, 430339), (52, 397236), (56, 368862), (78, 264824), (84, 245908), (91, 226992), (104, 198618), (112, 184431), (156, 132412), (168, 122954), (182, 113496), (208, 99309), (273, 75664), (312, 66206), (336, 61477), (364, 56748), (546, 37832), (624, 33103), (728, 28374), (1092, 18916), (1456, 14187), (2184, 9458), (4368, 4729)]