20596400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 56091648

約数和(自身を除く): 35495248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 151, 155, 176, 200, 220, 248, 275, 302, 310, 341, 400, 440, 496, 550, 604, 620, 682, 755, 775, 880, 1100, 1208, 1240, 1364, 1510, 1550, 1661, 1705, 2200, 2416, 2480, 2728, 3020, 3100, 3322, 3410, 3775, 4400, 4681, 5456, 6040, 6200, 6644, 6820, 7550, 8305, 8525, 9362, 12080, 12400, 13288, 13640, 15100, 16610, 17050, 18724, 23405, 26576, 27280, 30200, 33220, 34100, 37448, 41525, 46810, 51491, 60400, 66440, 68200, 74896, 83050, 93620, 102982, 117025, 132880, 136400, 166100, 187240, 205964, 234050, 257455, 332200, 374480, 411928, 468100, 514910, 664400, 823856, 936200, 1029820, 1287275, 1872400, 2059640, 2574550, 4119280, 5149100, 10298200, 20596400]

約数ペア:

[(1, 20596400), (2, 10298200), (4, 5149100), (5, 4119280), (8, 2574550), (10, 2059640), (11, 1872400), (16, 1287275), (20, 1029820), (22, 936200), (25, 823856), (31, 664400), (40, 514910), (44, 468100), (50, 411928), (55, 374480), (62, 332200), (80, 257455), (88, 234050), (100, 205964), (110, 187240), (124, 166100), (151, 136400), (155, 132880), (176, 117025), (200, 102982), (220, 93620), (248, 83050), (275, 74896), (302, 68200), (310, 66440), (341, 60400), (400, 51491), (440, 46810), (496, 41525), (550, 37448), (604, 34100), (620, 33220), (682, 30200), (755, 27280), (775, 26576), (880, 23405), (1100, 18724), (1208, 17050), (1240, 16610), (1364, 15100), (1510, 13640), (1550, 13288), (1661, 12400), (1705, 12080), (2200, 9362), (2416, 8525), (2480, 8305), (2728, 7550), (3020, 6820), (3100, 6644), (3322, 6200), (3410, 6040), (3775, 5456), (4400, 4681)]