28039820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{653}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 62627040

約数和(自身を除く): 34587220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 380, 452, 565, 653, 1130, 1306, 2147, 2260, 2612, 3265, 4294, 6530, 8588, 10735, 12407, 13060, 21470, 24814, 42940, 49628, 62035, 73789, 124070, 147578, 248140, 295156, 368945, 737890, 1401991, 1475780, 2803982, 5607964, 7009955, 14019910, 28039820]

約数ペア:

[(1, 28039820), (2, 14019910), (4, 7009955), (5, 5607964), (10, 2803982), (19, 1475780), (20, 1401991), (38, 737890), (76, 368945), (95, 295156), (113, 248140), (190, 147578), (226, 124070), (380, 73789), (452, 62035), (565, 49628), (653, 42940), (1130, 24814), (1306, 21470), (2147, 13060), (2260, 12407), (2612, 10735), (3265, 8588), (4294, 6530)]