20758428

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 56255472

約数和(自身を除く): 35497044

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 107, 153, 204, 214, 306, 317, 321, 428, 612, 634, 642, 951, 963, 1268, 1284, 1819, 1902, 1926, 2853, 3638, 3804, 3852, 5389, 5457, 5706, 7276, 10778, 10914, 11412, 16167, 16371, 21556, 21828, 32334, 32742, 33919, 48501, 64668, 65484, 67838, 97002, 101757, 135676, 194004, 203514, 305271, 407028, 576623, 610542, 1153246, 1221084, 1729869, 2306492, 3459738, 5189607, 6919476, 10379214, 20758428]

約数ペア:

[(1, 20758428), (2, 10379214), (3, 6919476), (4, 5189607), (6, 3459738), (9, 2306492), (12, 1729869), (17, 1221084), (18, 1153246), (34, 610542), (36, 576623), (51, 407028), (68, 305271), (102, 203514), (107, 194004), (153, 135676), (204, 101757), (214, 97002), (306, 67838), (317, 65484), (321, 64668), (428, 48501), (612, 33919), (634, 32742), (642, 32334), (951, 21828), (963, 21556), (1268, 16371), (1284, 16167), (1819, 11412), (1902, 10914), (1926, 10778), (2853, 7276), (3638, 5706), (3804, 5457), (3852, 5389)]