20040516

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 54119520

約数和(自身を除く): 34079004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 83, 114, 166, 171, 228, 249, 332, 342, 353, 498, 684, 706, 747, 996, 1059, 1412, 1494, 1577, 2118, 2988, 3154, 3177, 4236, 4731, 6308, 6354, 6707, 9462, 12708, 13414, 14193, 18924, 20121, 26828, 28386, 29299, 40242, 56772, 58598, 60363, 80484, 87897, 117196, 120726, 175794, 241452, 263691, 351588, 527382, 556681, 1054764, 1113362, 1670043, 2226724, 3340086, 5010129, 6680172, 10020258, 20040516]

約数ペア:

[(1, 20040516), (2, 10020258), (3, 6680172), (4, 5010129), (6, 3340086), (9, 2226724), (12, 1670043), (18, 1113362), (19, 1054764), (36, 556681), (38, 527382), (57, 351588), (76, 263691), (83, 241452), (114, 175794), (166, 120726), (171, 117196), (228, 87897), (249, 80484), (332, 60363), (342, 58598), (353, 56772), (498, 40242), (684, 29299), (706, 28386), (747, 26828), (996, 20121), (1059, 18924), (1412, 14193), (1494, 13414), (1577, 12708), (2118, 9462), (2988, 6707), (3154, 6354), (3177, 6308), (4236, 4731)]