20620976428

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{4297}}^1$

素因数の和:4587

約数の個数: 72

約数和(自身を含む): 40522231680

約数和(自身を除く): 19901255252

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 229, 338, 403, 458, 676, 806, 916, 1612, 2977, 4297, 5239, 5954, 7099, 8594, 10478, 11908, 14198, 17188, 20956, 28396, 38701, 55861, 77402, 92287, 111722, 133207, 154804, 184574, 223444, 266414, 369148, 532828, 726193, 984013, 1199731, 1452386, 1731691, 1968026, 2399462, 2904772, 3463382, 3936052, 4798924, 6926764, 12792169, 22511983, 25584338, 30504403, 45023966, 51168676, 61008806, 90047932, 122017612, 166298197, 332596394, 396557239, 665192788, 793114478, 1586228956, 5155244107, 10310488214, 20620976428]

約数ペア:

[(1, 20620976428), (2, 10310488214), (4, 5155244107), (13, 1586228956), (26, 793114478), (31, 665192788), (52, 396557239), (62, 332596394), (124, 166298197), (169, 122017612), (229, 90047932), (338, 61008806), (403, 51168676), (458, 45023966), (676, 30504403), (806, 25584338), (916, 22511983), (1612, 12792169), (2977, 6926764), (4297, 4798924), (5239, 3936052), (5954, 3463382), (7099, 2904772), (8594, 2399462), (10478, 1968026), (11908, 1731691), (14198, 1452386), (17188, 1199731), (20956, 984013), (28396, 726193), (38701, 532828), (55861, 369148), (77402, 266414), (92287, 223444), (111722, 184574), (133207, 154804)]