28782325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 42872256

約数和(自身を除く): 14089931

約数列:

[1, 5, 11, 13, 25, 55, 65, 83, 97, 143, 275, 325, 415, 485, 715, 913, 1067, 1079, 1261, 2075, 2425, 3575, 4565, 5335, 5395, 6305, 8051, 11869, 13871, 22825, 26675, 26975, 31525, 40255, 59345, 69355, 88561, 104663, 201275, 296725, 346775, 442805, 523315, 1151293, 2214025, 2616575, 5756465, 28782325]

約数ペア:

[(1, 28782325), (5, 5756465), (11, 2616575), (13, 2214025), (25, 1151293), (55, 523315), (65, 442805), (83, 346775), (97, 296725), (143, 201275), (275, 104663), (325, 88561), (415, 69355), (485, 59345), (715, 40255), (913, 31525), (1067, 26975), (1079, 26675), (1261, 22825), (2075, 13871), (2425, 11869), (3575, 8051), (4565, 6305), (5335, 5395)]